78707741 has 8 divisors (see below), whose sum is σ = 92145984. Its totient is φ = 65818080.

The previous prime is 78707731. The next prime is 78707743. The reversal of 78707741 is 14770787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78707741 - 2²² = 74513437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78707743) 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, 136835 + ... + 137408.

It is an arithmetic number, because the mean of its divisors is an integer number (11518248).

Almost surely, 2^78707741 is an apocalyptic number.

It is an amenable number.

78707741 is a deficient number, since it is larger than the sum of its proper divisors (13438243).

78707741 is a wasteful number, since it uses less digits than its factorization.

78707741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274291.

The product of its (nonzero) digits is 76832, while the sum is 41.

The square root of 78707741 is about 8871.7383302259. The cubic root of 78707741 is about 428.5542594339.

The spelling of 78707741 in words is "seventy-eight million, seven hundred seven thousand, seven hundred forty-one".