78413601 has 32 divisors (see below), whose sum is σ = 128729088. Its totient is φ = 41469120.

The previous prime is 78413581. The next prime is 78413611. The reversal of 78413601 is 10631487.

It is a happy number.

It is not a de Polignac number, because 78413601 - 2¹⁸ = 78151457 is a prime.

It is a super-2 number, since 2×78413601² = 12297385643574402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78413611) 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, 12355 + ... + 17591.

It is an arithmetic number, because the mean of its divisors is an integer number (4022784).

Almost surely, 2^78413601 is an apocalyptic number.

It is an amenable number.

78413601 is a deficient number, since it is larger than the sum of its proper divisors (50315487).

78413601 is a wasteful number, since it uses less digits than its factorization.

78413601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 78413601 is about 8855.1454533508. The cubic root of 78413601 is about 428.0197406244.

The spelling of 78413601 in words is "seventy-eight million, four hundred thirteen thousand, six hundred one".