78674072 has 16 divisors (see below), whose sum is σ = 147646800. Its totient is φ = 39301600.

The previous prime is 78674059. The next prime is 78674077. The reversal of 78674072 is 27047687.

It is a super-2 number, since 2×78674072² = 12379219210122368, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78674077) 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 3 ways as a sum of consecutive naturals, for example, 6629 + ... + 14187.

It is an arithmetic number, because the mean of its divisors is an integer number (9227925).

Almost surely, 2^78674072 is an apocalyptic number.

It is an amenable number.

78674072 is a deficient number, since it is larger than the sum of its proper divisors (68972728).

78674072 is a wasteful number, since it uses less digits than its factorization.

78674072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8866 (or 8862 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 41.

The square root of 78674072 is about 8869.8405848132. The cubic root of 78674072 is about 428.4931428224.

The spelling of 78674072 in words is "seventy-eight million, six hundred seventy-four thousand, seventy-two".