39897394 has 8 divisors (see below), whose sum is σ = 59921280. Its totient is φ = 19923636.

The previous prime is 39897391. The next prime is 39897401. The reversal of 39897394 is 49379893.

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

It is not an unprimeable number, because it can be changed into a prime (39897391) 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, 10474 + ... + 13765.

It is an arithmetic number, because the mean of its divisors is an integer number (7490160).

Almost surely, 2^39897394 is an apocalyptic number.

39897394 is a deficient number, since it is larger than the sum of its proper divisors (20023886).

39897394 is a wasteful number, since it uses less digits than its factorization.

39897394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25064.

The product of its digits is 1469664, while the sum is 52.

The square root of 39897394 is about 6316.4383951718. The cubic root of 39897394 is about 341.7025159555.

The spelling of 39897394 in words is "thirty-nine million, eight hundred ninety-seven thousand, three hundred ninety-four".