78989262 has 32 divisors (see below), whose sum is σ = 172990080. Its totient is φ = 23845920.

The previous prime is 78989257. The next prime is 78989263. The reversal of 78989262 is 26298987.

It is a happy number.

It is a super-2 number, since 2×78989262² = 12478607022609288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78989263) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16564 + ... + 20792.

It is an arithmetic number, because the mean of its divisors is an integer number (5405940).

Almost surely, 2^78989262 is an apocalyptic number.

78989262 is an abundant number, since it is smaller than the sum of its proper divisors (94000818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78989262 is a wasteful number, since it uses less digits than its factorization.

78989262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528.

The product of its digits is 870912, while the sum is 51.

The square root of 78989262 is about 8887.5903370936. The cubic root of 78989262 is about 429.0646008747.

The spelling of 78989262 in words is "seventy-eight million, nine hundred eighty-nine thousand, two hundred sixty-two".