78812074 has 16 divisors (see below), whose sum is σ = 129102336. Its totient is φ = 35785600.

The previous prime is 78812047. The next prime is 78812131. The reversal of 78812074 is 47021887.

It is a super-2 number, since 2×78812074² = 12422686016362952, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 36279 + ... + 38389.

It is an arithmetic number, because the mean of its divisors is an integer number (8068896).

Almost surely, 2^78812074 is an apocalyptic number.

78812074 is a deficient number, since it is larger than the sum of its proper divisors (50290262).

78812074 is a wasteful number, since it uses less digits than its factorization.

78812074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3821.

The product of its (nonzero) digits is 25088, while the sum is 37.

The square root of 78812074 is about 8877.6164593882. The cubic root of 78812074 is about 428.7435360709.

The spelling of 78812074 in words is "seventy-eight million, eight hundred twelve thousand, seventy-four".