39471982 has 8 divisors (see below), whose sum is σ = 64590552. Its totient is φ = 17941800.

The previous prime is 39471967. The next prime is 39471983. The reversal of 39471982 is 28917493.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39471983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 897069 + ... + 897112.

It is an arithmetic number, because the mean of its divisors is an integer number (8073819).

Almost surely, 2^39471982 is an apocalyptic number.

39471982 is a deficient number, since it is larger than the sum of its proper divisors (25118570).

39471982 is a wasteful number, since it uses less digits than its factorization.

39471982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1794194.

The product of its digits is 108864, while the sum is 43.

The square root of 39471982 is about 6282.6731571840. The cubic root of 39471982 is about 340.4836887340.

It can be divided in two parts, 3947 and 1982, that added together give a square (5929 = 77²).

The spelling of 39471982 in words is "thirty-nine million, four hundred seventy-one thousand, nine hundred eighty-two".