78358001 has 4 divisors (see below), whose sum is σ = 78380400. Its totient is φ = 78335604.

The previous prime is 78357991. The next prime is 78358031. The reversal of 78358001 is 10085387.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78358001 - 2²⁶ = 11249137 is a prime.

It is a super-2 number, since 2×78358001² = 12279952641432002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78358031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4691 + ... + 13368.

It is an arithmetic number, because the mean of its divisors is an integer number (19595100).

Almost surely, 2^78358001 is an apocalyptic number.

It is an amenable number.

78358001 is a deficient number, since it is larger than the sum of its proper divisors (22399).

78358001 is a wasteful number, since it uses less digits than its factorization.

78358001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22398.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 78358001 is about 8852.0054789861. The cubic root of 78358001 is about 427.9185527173.

The spelling of 78358001 in words is "seventy-eight million, three hundred fifty-eight thousand, one".