76939400 has 24 divisors (see below), whose sum is σ = 178884570. Its totient is φ = 30775680.

The previous prime is 76939381. The next prime is 76939403. The reversal of 76939400 is 493967.

It can be written as a sum of positive squares in 3 ways, for example, as 66814276 + 10125124 = 8174^2 + 3182^2 .

It is not an unprimeable number, because it can be changed into a prime (76939403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 192149 + ... + 192548.

Almost surely, 2^76939400 is an apocalyptic number.

It is an amenable number.

76939400 is an abundant number, since it is smaller than the sum of its proper divisors (101945170).

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

76939400 is a wasteful number, since it uses less digits than its factorization.

76939400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384713 (or 384704 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 76939400 is about 8771.5107022679. The cubic root of 76939400 is about 425.3204503610.

The spelling of 76939400 in words is "seventy-six million, nine hundred thirty-nine thousand, four hundred".