75478902 has 16 divisors (see below), whose sum is σ = 151044912. Its totient is φ = 25145120.

The previous prime is 75478867. The next prime is 75478913. The reversal of 75478902 is 20987457.

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 7 ways as a sum of consecutive naturals, for example, 14968 + ... + 19364.

It is an arithmetic number, because the mean of its divisors is an integer number (9440307).

Almost surely, 2^75478902 is an apocalyptic number.

75478902 is an abundant number, since it is smaller than the sum of its proper divisors (75566010).

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

75478902 is a wasteful number, since it uses less digits than its factorization.

75478902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7263.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 75478902 is about 8687.8594601893. The cubic root of 75478902 is about 422.6120324263.

The spelling of 75478902 in words is "seventy-five million, four hundred seventy-eight thousand, nine hundred two".