76353981 has 16 divisors (see below), whose sum is σ = 111226368. Its totient is φ = 46206000.

The previous prime is 76353943. The next prime is 76354001. The reversal of 76353981 is 18935367.

It is not a de Polignac number, because 76353981 - 2⁶ = 76353917 is a prime.

It is a super-2 number, since 2×76353981² = 11659860829096722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76353181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28656 + ... + 31206.

It is an arithmetic number, because the mean of its divisors is an integer number (6951648).

Almost surely, 2^76353981 is an apocalyptic number.

It is an amenable number.

76353981 is a deficient number, since it is larger than the sum of its proper divisors (34872387).

76353981 is a wasteful number, since it uses less digits than its factorization.

76353981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3472.

The product of its digits is 136080, while the sum is 42.

The square root of 76353981 is about 8738.0765045861. The cubic root of 76353981 is about 424.2389721012.

The spelling of 76353981 in words is "seventy-six million, three hundred fifty-three thousand, nine hundred eighty-one".