78464046 has 16 divisors (see below), whose sum is σ = 157017600. Its totient is φ = 26139768.

The previous prime is 78464039. The next prime is 78464051. The reversal of 78464046 is 64046487.

It is a junction number, because it is equal to n+sod(n) for n = 78463995 and 78464013.

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, 14595 + ... + 19233.

It is an arithmetic number, because the mean of its divisors is an integer number (9813600).

Almost surely, 2^78464046 is an apocalyptic number.

78464046 is an abundant number, since it is smaller than the sum of its proper divisors (78553554).

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

78464046 is a wasteful number, since it uses less digits than its factorization.

78464046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7463.

The product of its (nonzero) digits is 129024, while the sum is 39.

The square root of 78464046 is about 8857.9933393518. The cubic root of 78464046 is about 428.1115054336. Note that the first 3 decimals are identical.

The spelling of 78464046 in words is "seventy-eight million, four hundred sixty-four thousand, forty-six".