75738981 has 16 divisors (see below), whose sum is σ = 104788800. Its totient is φ = 48601728.

The previous prime is 75738979. The next prime is 75738989. The reversal of 75738981 is 18983757.

It is not a de Polignac number, because 75738981 - 2¹ = 75738979 is a prime.

It is a super-2 number, since 2×75738981² = 11472786485836722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75738981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75738989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31825 + ... + 34121.

It is an arithmetic number, because the mean of its divisors is an integer number (6549300).

Almost surely, 2^75738981 is an apocalyptic number.

It is an amenable number.

75738981 is a deficient number, since it is larger than the sum of its proper divisors (29049819).

75738981 is a wasteful number, since it uses less digits than its factorization.

75738981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708.

The product of its digits is 423360, while the sum is 48.

The square root of 75738981 is about 8702.8145447321. The cubic root of 75738981 is about 423.0968765813.

The spelling of 75738981 in words is "seventy-five million, seven hundred thirty-eight thousand, nine hundred eighty-one".