78190463 has 32 divisors (see below), whose sum is σ = 93768192. Its totient is φ = 64512000.

The previous prime is 78190459. The next prime is 78190477. The reversal of 78190463 is 36409187.

It is a cyclic number.

It is not a de Polignac number, because 78190463 - 2² = 78190459 is a prime.

It is a super-2 number, since 2×78190463² = 12227497008308738, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78190433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 691895 + ... + 692007.

It is an arithmetic number, because the mean of its divisors is an integer number (2930256).

Almost surely, 2^78190463 is an apocalyptic number.

78190463 is a deficient number, since it is larger than the sum of its proper divisors (15577729).

78190463 is a wasteful number, since it uses less digits than its factorization.

78190463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 78190463 is about 8842.5371359130. The cubic root of 78190463 is about 427.6133561669.

The spelling of 78190463 in words is "seventy-eight million, one hundred ninety thousand, four hundred sixty-three".