39790199 has 4 divisors (see below), whose sum is σ = 41884440. Its totient is φ = 37695960.

The previous prime is 39790189. The next prime is 39790241. The reversal of 39790199 is 99109793.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39790199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39790139) 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, 1047092 + ... + 1047129.

It is an arithmetic number, because the mean of its divisors is an integer number (10471110).

Almost surely, 2^39790199 is an apocalyptic number.

39790199 is a deficient number, since it is larger than the sum of its proper divisors (2094241).

39790199 is a wasteful number, since it uses less digits than its factorization.

39790199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094240.

The product of its (nonzero) digits is 137781, while the sum is 47.

The square root of 39790199 is about 6307.9472889364. The cubic root of 39790199 is about 341.3962164630.

It can be divided in two parts, 39790 and 199, that multiplied together give a triangular number (7918210 = T₃₉₇₉).

The spelling of 39790199 in words is "thirty-nine million, seven hundred ninety thousand, one hundred ninety-nine".