78622046 has 8 divisors (see below), whose sum is σ = 119866584. Its totient is φ = 38666520.

The previous prime is 78622039. The next prime is 78622079. The reversal of 78622046 is 64022687.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×78622046² = 12362852234452232, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78621997 and 78622015.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322100 + ... + 322343.

It is an arithmetic number, because the mean of its divisors is an integer number (14983323).

Almost surely, 2^78622046 is an apocalyptic number.

78622046 is a deficient number, since it is larger than the sum of its proper divisors (41244538).

78622046 is a wasteful number, since it uses less digits than its factorization.

78622046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644506.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 78622046 is about 8866.9073526230. The cubic root of 78622046 is about 428.3986699359.

The spelling of 78622046 in words is "seventy-eight million, six hundred twenty-two thousand, forty-six".