78379222 has 16 divisors (see below), whose sum is σ = 121577472. Its totient is φ = 37857960.

The previous prime is 78379219. The next prime is 78379247. The reversal of 78379222 is 22297387.

It is a super-2 number, since 2×78379222² = 12286604882650568, which contains 22 as substring.

It is a congruent number.

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, 66813 + ... + 67975.

It is an arithmetic number, because the mean of its divisors is an integer number (7598592).

Almost surely, 2^78379222 is an apocalyptic number.

78379222 is a deficient number, since it is larger than the sum of its proper divisors (43198250).

78379222 is a wasteful number, since it uses less digits than its factorization.

78379222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283.

The product of its digits is 84672, while the sum is 40.

The square root of 78379222 is about 8853.2040527710. The cubic root of 78379222 is about 427.9571790216.

The spelling of 78379222 in words is "seventy-eight million, three hundred seventy-nine thousand, two hundred twenty-two".