78918201 has 24 divisors (see below), whose sum is σ = 118591616. Its totient is φ = 50531040.

The previous prime is 78918173. The next prime is 78918227. The reversal of 78918201 is 10281987.

It is not a de Polignac number, because 78918201 - 2¹⁴ = 78901817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78918271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21936 + ... + 25278.

Almost surely, 2^78918201 is an apocalyptic number.

It is an amenable number.

78918201 is a deficient number, since it is larger than the sum of its proper divisors (39673415).

78918201 is a wasteful number, since it uses less digits than its factorization.

78918201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3453 (or 3450 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 78918201 is about 8883.5916722911. The cubic root of 78918201 is about 428.9358960079.

The spelling of 78918201 in words is "seventy-eight million, nine hundred eighteen thousand, two hundred one".