39691361 has 8 divisors (see below), whose sum is σ = 41858400. Its totient is φ = 37532160.

The previous prime is 39691349. The next prime is 39691367. The reversal of 39691361 is 16319693.

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

It is a cyclic number.

It is not a de Polignac number, because 39691361 - 2¹⁸ = 39429217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39691367) 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, 10550 + ... + 13808.

It is an arithmetic number, because the mean of its divisors is an integer number (5232300).

Almost surely, 2^39691361 is an apocalyptic number.

It is an amenable number.

39691361 is a deficient number, since it is larger than the sum of its proper divisors (2167039).

39691361 is a wasteful number, since it uses less digits than its factorization.

39691361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3919.

The product of its digits is 26244, while the sum is 38.

The square root of 39691361 is about 6300.1080149470. The cubic root of 39691361 is about 341.1133084638.

The spelling of 39691361 in words is "thirty-nine million, six hundred ninety-one thousand, three hundred sixty-one".