75726816 has 48 divisors (see below), whose sum is σ = 216857088. Its totient is φ = 22947200.

The previous prime is 75726811. The next prime is 75726839. The reversal of 75726816 is 61862757.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×75726816² = 11469101322995712, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75726811) 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, 34800 + ... + 36911.

It is an arithmetic number, because the mean of its divisors is an integer number (4517856).

Almost surely, 2^75726816 is an apocalyptic number.

It is an amenable number.

75726816 is an abundant number, since it is smaller than the sum of its proper divisors (141130272).

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

75726816 is a wasteful number, since it uses less digits than its factorization.

75726816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71735 (or 71727 counting only the distinct ones).

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

The square root of 75726816 is about 8702.1156048400. The cubic root of 75726816 is about 423.0742231250.

The spelling of 75726816 in words is "seventy-five million, seven hundred twenty-six thousand, eight hundred sixteen".