78372762 has 16 divisors (see below), whose sum is σ = 168803040. Its totient is φ = 24114672.

The previous prime is 78372757. The next prime is 78372769. The reversal of 78372762 is 26727387.

It is a super-2 number, since 2×78372762² = 12284579647017288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78372769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502312 + ... + 502467.

It is an arithmetic number, because the mean of its divisors is an integer number (10550190).

Almost surely, 2^78372762 is an apocalyptic number.

78372762 is an abundant number, since it is smaller than the sum of its proper divisors (90430278).

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

78372762 is a wasteful number, since it uses less digits than its factorization.

78372762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004797.

The product of its digits is 197568, while the sum is 42.

The square root of 78372762 is about 8852.8392055882. The cubic root of 78372762 is about 427.9454213165.

The spelling of 78372762 in words is "seventy-eight million, three hundred seventy-two thousand, seven hundred sixty-two".