71900401 has 8 divisors (see below), whose sum is σ = 73142784. Its totient is φ = 70665120.

The previous prime is 71900393. The next prime is 71900417. The reversal of 71900401 is 10400917.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71900401 - 2³ = 71900393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71903401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21120 + ... + 24286.

It is an arithmetic number, because the mean of its divisors is an integer number (9142848).

Almost surely, 2^71900401 is an apocalyptic number.

It is an amenable number.

71900401 is a deficient number, since it is larger than the sum of its proper divisors (1242383).

71900401 is a wasteful number, since it uses less digits than its factorization.

71900401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 71900401 is about 8479.4104158249. The cubic root of 71900401 is about 415.8248480626.

The spelling of 71900401 in words is "seventy-one million, nine hundred thousand, four hundred one".