47097855 has 80 divisors (see below), whose sum is σ = 99316800. Its totient is φ = 20901888.

The previous prime is 47097847. The next prime is 47097863. The reversal of 47097855 is 55879074.

It is an interprime number because it is at equal distance from previous prime (47097847) and next prime (47097863).

It is not a de Polignac number, because 47097855 - 2³ = 47097847 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 47097855.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 104671 + ... + 105119.

It is an arithmetic number, because the mean of its divisors is an integer number (1241460).

Almost surely, 2^47097855 is an apocalyptic number.

47097855 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

47097855 is an abundant number, since it is smaller than the sum of its proper divisors (52218945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47097855 is a wasteful number, since it uses less digits than its factorization.

47097855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 47097855 is about 6862.7876988874. The cubic root of 47097855 is about 361.1328894864.

The spelling of 47097855 in words is "forty-seven million, ninety-seven thousand, eight hundred fifty-five".