75306712 has 32 divisors (see below), whose sum is σ = 152560800. Its totient is φ = 34642944.

The previous prime is 75306697. The next prime is 75306713. The reversal of 75306712 is 21760357.

It is a super-2 number, since 2×75306712² = 11342201744501888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75306713) 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, 36328 + ... + 38344.

It is an arithmetic number, because the mean of its divisors is an integer number (4767525).

Almost surely, 2^75306712 is an apocalyptic number.

It is an amenable number.

75306712 is an abundant number, since it is smaller than the sum of its proper divisors (77254088).

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

75306712 is a wasteful number, since it uses less digits than its factorization.

75306712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395 (or 2391 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 31.

The square root of 75306712 is about 8677.9439961318. The cubic root of 75306712 is about 422.2904194961.

The spelling of 75306712 in words is "seventy-five million, three hundred six thousand, seven hundred twelve".