71699942 has 4 divisors (see below), whose sum is σ = 107549916. Its totient is φ = 35849970.

The previous prime is 71699941. The next prime is 71699981. The reversal of 71699942 is 24999617.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71699941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17924984 + ... + 17924987.

It is an arithmetic number, because the mean of its divisors is an integer number (26887479).

Almost surely, 2^71699942 is an apocalyptic number.

71699942 is a deficient number, since it is larger than the sum of its proper divisors (35849974).

71699942 is a wasteful number, since it uses less digits than its factorization.

71699942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35849973.

The product of its digits is 244944, while the sum is 47.

The square root of 71699942 is about 8467.5818271807. The cubic root of 71699942 is about 415.4380471645.

The spelling of 71699942 in words is "seventy-one million, six hundred ninety-nine thousand, nine hundred forty-two".