39497018 has 16 divisors (see below), whose sum is σ = 68433984. Its totient is φ = 16896960.

The previous prime is 39497011. The next prime is 39497021. The reversal of 39497018 is 81079493.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39497011) 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, 52430 + ... + 53177.

It is an arithmetic number, because the mean of its divisors is an integer number (4277124).

Almost surely, 2^39497018 is an apocalyptic number.

39497018 is a deficient number, since it is larger than the sum of its proper divisors (28936966).

39497018 is a wasteful number, since it uses less digits than its factorization.

39497018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105637.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 39497018 is about 6284.6653053285. The cubic root of 39497018 is about 340.5556600208. Note that the first 3 decimals are identical.

The spelling of 39497018 in words is "thirty-nine million, four hundred ninety-seven thousand, eighteen".