77970741 has 4 divisors (see below), whose sum is σ = 103960992. Its totient is φ = 51980492.

The previous prime is 77970733. The next prime is 77970751. The reversal of 77970741 is 14707977.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77970741 - 2³ = 77970733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77970693 and 77970702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77970701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12995121 + ... + 12995126.

It is an arithmetic number, because the mean of its divisors is an integer number (25990248).

Almost surely, 2^77970741 is an apocalyptic number.

It is an amenable number.

77970741 is a deficient number, since it is larger than the sum of its proper divisors (25990251).

77970741 is a wasteful number, since it uses less digits than its factorization.

77970741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25990250.

The product of its (nonzero) digits is 86436, while the sum is 42.

The square root of 77970741 is about 8830.1042462703. The cubic root of 77970741 is about 427.2124368214.

The spelling of 77970741 in words is "seventy-seven million, nine hundred seventy thousand, seven hundred forty-one".