78038734 has 12 divisors (see below), whose sum is σ = 117882864. Its totient is φ = 38746344.

The previous prime is 78038717. The next prime is 78038759. The reversal of 78038734 is 43783087.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 48507 + ... + 50089.

It is an arithmetic number, because the mean of its divisors is an integer number (9823572).

Almost surely, 2^78038734 is an apocalyptic number.

78038734 is a deficient number, since it is larger than the sum of its proper divisors (39844130).

78038734 is a wasteful number, since it uses less digits than its factorization.

78038734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1899 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 78038734 is about 8833.9534750869. The cubic root of 78038734 is about 427.3365817485.

The spelling of 78038734 in words is "seventy-eight million, thirty-eight thousand, seven hundred thirty-four".