71890959 has 8 divisors (see below), whose sum is σ = 109548160. Its totient is φ = 41080536.

The previous prime is 71890937. The next prime is 71890967. The reversal of 71890959 is 95909817.

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

It is not a de Polignac number, because 71890959 - 2⁷ = 71890831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71890459) 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, 1711669 + ... + 1711710.

It is an arithmetic number, because the mean of its divisors is an integer number (13693520).

Almost surely, 2^71890959 is an apocalyptic number.

71890959 is a deficient number, since it is larger than the sum of its proper divisors (37657201).

71890959 is a wasteful number, since it uses less digits than its factorization.

71890959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3423389.

The product of its (nonzero) digits is 204120, while the sum is 48.

The square root of 71890959 is about 8478.8536371375. The cubic root of 71890959 is about 415.8066451503.

The spelling of 71890959 in words is "seventy-one million, eight hundred ninety thousand, nine hundred fifty-nine".