47196945 has 32 divisors (see below), whose sum is σ = 85962240. Its totient is φ = 24554880.

The previous prime is 47196937. The next prime is 47196953. The reversal of 47196945 is 54969174.

47196945 is a `hidden beast` number, since 471 + 96 + 94 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (47196937) and next prime (47196953).

It is not a de Polignac number, because 47196945 - 2³ = 47196937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 47196945.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1272 + ... + 9798.

It is an arithmetic number, because the mean of its divisors is an integer number (2686320).

Almost surely, 2^47196945 is an apocalyptic number.

47196945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47196945 is a deficient number, since it is larger than the sum of its proper divisors (38765295).

47196945 is a wasteful number, since it uses less digits than its factorization.

47196945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8582 (or 8576 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 47196945 is about 6870.0032751084. The cubic root of 47196945 is about 361.3859766764.

Subtracting from 47196945 its sum of digits (45), we obtain a square (47196900 = 6870²).

It can be divided in two parts, 4719 and 6945, that added together give a square (11664 = 108²).

The spelling of 47196945 in words is "forty-seven million, one hundred ninety-six thousand, nine hundred forty-five".