78700465 has 8 divisors (see below), whose sum is σ = 95414760. Its totient is φ = 62310912.

The previous prime is 78700423. The next prime is 78700471. The reversal of 78700465 is 56400787.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 254016 + 78446449 = 504^2 + 8857^2 .

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 78700465 - 2¹⁹ = 78176177 is a prime.

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, 80650 + ... + 81619.

It is an arithmetic number, because the mean of its divisors is an integer number (11926845).

Almost surely, 2^78700465 is an apocalyptic number.

It is an amenable number.

78700465 is a deficient number, since it is larger than the sum of its proper divisors (16714295).

78700465 is a wasteful number, since it uses less digits than its factorization.

78700465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162371.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78700465 is about 8871.3282545513. The cubic root of 78700465 is about 428.5410533763.

The spelling of 78700465 in words is "seventy-eight million, seven hundred thousand, four hundred sixty-five".