77694072 has 32 divisors (see below), whose sum is σ = 194588880. Its totient is φ = 25850880.

The previous prime is 77694041. The next prime is 77694073. The reversal of 77694072 is 27049677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77694073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12072 + ... + 17352.

Almost surely, 2^77694072 is an apocalyptic number.

It is an amenable number.

77694072 is an abundant number, since it is smaller than the sum of its proper divisors (116894808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77694072 is a wasteful number, since it uses less digits than its factorization.

77694072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5903 (or 5899 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 42.

The square root of 77694072 is about 8814.4240878233. The cubic root of 77694072 is about 426.7065354455.

The spelling of 77694072 in words is "seventy-seven million, six hundred ninety-four thousand, seventy-two".