77074443 has 8 divisors (see below), whose sum is σ = 114184400. Its totient is φ = 51382944.

The previous prime is 77074427. The next prime is 77074457. The reversal of 77074443 is 34447077.

It is not a de Polignac number, because 77074443 - 2⁴ = 77074427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77074398 and 77074407.

It is not an unprimeable number, because it can be changed into a prime (77074423) 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, 1427278 + ... + 1427331.

It is an arithmetic number, because the mean of its divisors is an integer number (14273050).

Almost surely, 2^77074443 is an apocalyptic number.

77074443 is a deficient number, since it is larger than the sum of its proper divisors (37109957).

77074443 is a wasteful number, since it uses less digits than its factorization.

77074443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854618 (or 2854612 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 36.

The square root of 77074443 is about 8779.2051462533. The cubic root of 77074443 is about 425.5691438277.

The spelling of 77074443 in words is "seventy-seven million, seventy-four thousand, four hundred forty-three".