75897720 has 48 divisors (see below), whose sum is σ = 246668760. Its totient is φ = 20239296.

The previous prime is 75897691. The next prime is 75897733. The reversal of 75897720 is 2779857.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105054 + ... + 105773.

Almost surely, 2^75897720 is an apocalyptic number.

It is an amenable number.

75897720 is an abundant number, since it is smaller than the sum of its proper divisors (170771040).

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

75897720 is a wasteful number, since it uses less digits than its factorization.

75897720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210844 (or 210837 counting only the distinct ones).

The product of its (nonzero) digits is 246960, while the sum is 45.

The square root of 75897720 is about 8711.9297517829. The cubic root of 75897720 is about 423.3922555608.

The spelling of 75897720 in words is "seventy-five million, eight hundred ninety-seven thousand, seven hundred twenty".