77273740 has 12 divisors (see below), whose sum is σ = 162274896. Its totient is φ = 30909488.

The previous prime is 77273711. The next prime is 77273759. The reversal of 77273740 is 4737277.

It is a self number, because there is not a number n which added to its sum of digits gives 77273740.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1931824 + ... + 1931863.

It is an arithmetic number, because the mean of its divisors is an integer number (13522908).

Almost surely, 2^77273740 is an apocalyptic number.

It is an amenable number.

77273740 is an abundant number, since it is smaller than the sum of its proper divisors (85001156).

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

77273740 is a wasteful number, since it uses less digits than its factorization.

77273740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863696 (or 3863694 counting only the distinct ones).

The product of its (nonzero) digits is 57624, while the sum is 37.

The square root of 77273740 is about 8790.5483332953. The cubic root of 77273740 is about 425.9356364955.

The spelling of 77273740 in words is "seventy-seven million, two hundred seventy-three thousand, seven hundred forty".