78296946 has 32 divisors (see below), whose sum is σ = 192732288. Its totient is φ = 20649600.

The previous prime is 78296923. The next prime is 78296947. The reversal of 78296946 is 64969287.

It is a happy number.

It is a super-2 number, since 2×78296946² = 12260823505853832, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78296947) 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, 71155 + ... + 72246.

It is an arithmetic number, because the mean of its divisors is an integer number (6022884).

Almost surely, 2^78296946 is an apocalyptic number.

78296946 is an abundant number, since it is smaller than the sum of its proper divisors (114435342).

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

78296946 is a wasteful number, since it uses less digits than its factorization.

78296946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143426.

The product of its digits is 1306368, while the sum is 51.

The square root of 78296946 is about 8848.5561534072. The cubic root of 78296946 is about 427.8073819558.

The spelling of 78296946 in words is "seventy-eight million, two hundred ninety-six thousand, nine hundred forty-six".