71642799 has 20 divisors (see below), whose sum is σ = 107278600. Its totient is φ = 47647440.

The previous prime is 71642771. The next prime is 71642807. The reversal of 71642799 is 99724617.

It is not a de Polignac number, because 71642799 - 2²⁴ = 54865583 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 (71642719) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 45477 + ... + 47025.

It is an arithmetic number, because the mean of its divisors is an integer number (5363930).

Almost surely, 2^71642799 is an apocalyptic number.

71642799 is a deficient number, since it is larger than the sum of its proper divisors (35635801).

71642799 is a wasteful number, since it uses less digits than its factorization.

71642799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132 (or 2123 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 71642799 is about 8464.2069327256. The cubic root of 71642799 is about 415.3276533714.

The spelling of 71642799 in words is "seventy-one million, six hundred forty-two thousand, seven hundred ninety-nine".