77441913 has 12 divisors (see below), whose sum is σ = 116003888. Its totient is φ = 51627780.

The previous prime is 77441911. The next prime is 77441921. The reversal of 77441913 is 31914477.

It is not a de Polignac number, because 77441913 - 2¹ = 77441911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77441911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159103 + ... + 159588.

Almost surely, 2^77441913 is an apocalyptic number.

It is an amenable number.

77441913 is a deficient number, since it is larger than the sum of its proper divisors (38561975).

77441913 is an equidigital number, since it uses as much as digits as its factorization.

77441913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318706 (or 318694 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 77441913 is about 8800.1086925106. The cubic root of 77441913 is about 426.2444044868.

The spelling of 77441913 in words is "seventy-seven million, four hundred forty-one thousand, nine hundred thirteen".