71423790 has 16 divisors (see below), whose sum is σ = 171417168. Its totient is φ = 19046336.

The previous prime is 71423789. The next prime is 71423791. The reversal of 71423790 is 9732417.

It is an interprime number because it is at equal distance from previous prime (71423789) and next prime (71423791).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71423791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190367 + ... + 1190426.

It is an arithmetic number, because the mean of its divisors is an integer number (10713573).

Almost surely, 2^71423790 is an apocalyptic number.

71423790 is an abundant number, since it is smaller than the sum of its proper divisors (99993378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71423790 is a wasteful number, since it uses less digits than its factorization.

71423790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380803.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 71423790 is about 8451.2596694221. The cubic root of 71423790 is about 414.9040083785.

The spelling of 71423790 in words is "seventy-one million, four hundred twenty-three thousand, seven hundred ninety".