78264610 has 16 divisors (see below), whose sum is σ = 148291200. Its totient is φ = 29658096.

The previous prime is 78264577. The next prime is 78264611. The reversal of 78264610 is 1646287.

It is a super-2 number, since 2×78264610² = 12250698356904200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78264611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205770 + ... + 206149.

It is an arithmetic number, because the mean of its divisors is an integer number (9268200).

Almost surely, 2^78264610 is an apocalyptic number.

78264610 is a deficient number, since it is larger than the sum of its proper divisors (70026590).

78264610 is a wasteful number, since it uses less digits than its factorization.

78264610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411945.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78264610 is about 8846.7287739593. The cubic root of 78264610 is about 427.7484801934.

The spelling of 78264610 in words is "seventy-eight million, two hundred sixty-four thousand, six hundred ten".