78034004 has 6 divisors (see below), whose sum is σ = 136559514. Its totient is φ = 39017000.

The previous prime is 78034003. The next prime is 78034031. The reversal of 78034004 is 40043087.

It can be written as a sum of positive squares in only one way, i.e., 70526404 + 7507600 = 8398^2 + 2740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78034003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9754247 + ... + 9754254.

It is an arithmetic number, because the mean of its divisors is an integer number (22759919).

Almost surely, 2^78034004 is an apocalyptic number.

It is an amenable number.

78034004 is a deficient number, since it is larger than the sum of its proper divisors (58525510).

78034004 is a wasteful number, since it uses less digits than its factorization.

78034004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19508505 (or 19508503 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 78034004 is about 8833.6857539761. The cubic root of 78034004 is about 427.3279478186.

The spelling of 78034004 in words is "seventy-eight million, thirty-four thousand, four".