39709901 has 24 divisors (see below), whose sum is σ = 50356992. Its totient is φ = 30650400.

The previous prime is 39709871. The next prime is 39709907. The reversal of 39709901 is 10990793.

It is a happy number.

It is not a de Polignac number, because 39709901 - 2⁶ = 39709837 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39709907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146396 + ... + 146666.

It is an arithmetic number, because the mean of its divisors is an integer number (2098208).

Almost surely, 2^39709901 is an apocalyptic number.

It is an amenable number.

39709901 is a deficient number, since it is larger than the sum of its proper divisors (10647091).

39709901 is a wasteful number, since it uses less digits than its factorization.

39709901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 39709901 is about 6301.5792465064. The cubic root of 39709901 is about 341.1664120120.

The spelling of 39709901 in words is "thirty-nine million, seven hundred nine thousand, nine hundred one".