78099465 has 48 divisors (see below), whose sum is σ = 133451136. Its totient is φ = 38976000.

The previous prime is 78099457. The next prime is 78099487. The reversal of 78099465 is 56499087.

It is not a de Polignac number, because 78099465 - 2³ = 78099457 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 517140 + ... + 517290.

It is an arithmetic number, because the mean of its divisors is an integer number (2780232).

Almost surely, 2^78099465 is an apocalyptic number.

It is an amenable number.

78099465 is a deficient number, since it is larger than the sum of its proper divisors (55351671).

78099465 is a wasteful number, since it uses less digits than its factorization.

78099465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258 (or 229 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 78099465 is about 8837.3901690488. The cubic root of 78099465 is about 427.4474064091.

The spelling of 78099465 in words is "seventy-eight million, ninety-nine thousand, four hundred sixty-five".