47173969 has 8 divisors (see below), whose sum is σ = 47781288. Its totient is φ = 46569600.

The previous prime is 47173957. The next prime is 47174009. The reversal of 47173969 is 96937174.

It can be written as a sum of positive squares in 4 ways, for example, as 8485569 + 38688400 = 2913^2 + 6220^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47173969 - 2⁵ = 47173937 is a prime.

It is a super-2 number, since 2×47173969² = 4450766702425922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47173939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61939 + ... + 62695.

It is an arithmetic number, because the mean of its divisors is an integer number (5972661).

Almost surely, 2^47173969 is an apocalyptic number.

It is an amenable number.

47173969 is a deficient number, since it is larger than the sum of its proper divisors (607319).

47173969 is a wasteful number, since it uses less digits than its factorization.

47173969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1475.

The product of its digits is 285768, while the sum is 46.

The square root of 47173969 is about 6868.3308743828. The cubic root of 47173969 is about 361.3273249146.

The spelling of 47173969 in words is "forty-seven million, one hundred seventy-three thousand, nine hundred sixty-nine".