78870653 has 8 divisors (see below), whose sum is σ = 84789120. Its totient is φ = 73128960.

The previous prime is 78870637. The next prime is 78870689. The reversal of 78870653 is 35607887.

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 78870653 - 2⁴ = 78870637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78870613) 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, 43268 + ... + 45053.

It is an arithmetic number, because the mean of its divisors is an integer number (10598640).

Almost surely, 2^78870653 is an apocalyptic number.

It is an amenable number.

78870653 is a deficient number, since it is larger than the sum of its proper divisors (5918467).

78870653 is a wasteful number, since it uses less digits than its factorization.

78870653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88387.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 78870653 is about 8880.9150992451. The cubic root of 78870653 is about 428.8497344673.

The spelling of 78870653 in words is "seventy-eight million, eight hundred seventy thousand, six hundred fifty-three".