78949075 has 18 divisors (see below), whose sum is σ = 100544532. Its totient is φ = 61462800.

The previous prime is 78949043. The next prime is 78949099. The reversal of 78949075 is 57094987.

It is a happy number.

It is not a de Polignac number, because 78949075 - 2⁵ = 78949043 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 291190 + ... + 291460.

Almost surely, 2^78949075 is an apocalyptic number.

78949075 is a deficient number, since it is larger than the sum of its proper divisors (21595457).

78949075 is an equidigital number, since it uses as much as digits as its factorization.

78949075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595 (or 319 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 78949075 is about 8885.3292004292. The cubic root of 78949075 is about 428.9918241297.

The spelling of 78949075 in words is "seventy-eight million, nine hundred forty-nine thousand, seventy-five".