78234562 has 16 divisors (see below), whose sum is σ = 134289792. Its totient is φ = 33485760.

The previous prime is 78234529. The next prime is 78234581. The reversal of 78234562 is 26543287.

It is a super-2 number, since 2×78234562² = 12241293382663688, which contains 22 as substring.

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, 9163 + ... + 15505.

It is an arithmetic number, because the mean of its divisors is an integer number (8393112).

Almost surely, 2^78234562 is an apocalyptic number.

78234562 is a deficient number, since it is larger than the sum of its proper divisors (56055230).

78234562 is a wasteful number, since it uses less digits than its factorization.

78234562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7233.

The product of its digits is 80640, while the sum is 37.

The square root of 78234562 is about 8845.0303560813. The cubic root of 78234562 is about 427.6937316016.

It can be divided in two parts, 782 and 34562, that added together give a square (35344 = 188²).

The spelling of 78234562 in words is "seventy-eight million, two hundred thirty-four thousand, five hundred sixty-two".