77444014 has 16 divisors (see below), whose sum is σ = 121885056. Its totient is φ = 36856800.

The previous prime is 77443999. The next prime is 77444023. The reversal of 77444014 is 41044477.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6457 + ... + 14020.

It is an arithmetic number, because the mean of its divisors is an integer number (7617816).

Almost surely, 2^77444014 is an apocalyptic number.

77444014 is a deficient number, since it is larger than the sum of its proper divisors (44441042).

77444014 is a wasteful number, since it uses less digits than its factorization.

77444014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20571.

The product of its (nonzero) digits is 12544, while the sum is 31.

The square root of 77444014 is about 8800.2280652265. The cubic root of 77444014 is about 426.2482591238.

The spelling of 77444014 in words is "seventy-seven million, four hundred forty-four thousand, fourteen".