39706398 has 12 divisors (see below), whose sum is σ = 86030568. Its totient is φ = 13235460.

The previous prime is 39706393. The next prime is 39706451. The reversal of 39706398 is 89360793.

It is a happy number.

39706398 is a `hidden beast` number, since 3 + 9 + 7 + 0 + 639 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39706393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1102938 + ... + 1102973.

It is an arithmetic number, because the mean of its divisors is an integer number (7169214).

Almost surely, 2^39706398 is an apocalyptic number.

39706398 is an abundant number, since it is smaller than the sum of its proper divisors (46324170).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39706398 is a wasteful number, since it uses less digits than its factorization.

39706398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205919 (or 2205916 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 39706398 is about 6301.3012941773. The cubic root of 39706398 is about 341.1563797442.

It can be divided in two parts, 39706 and 398, that added together give a palindrome (40104).

The spelling of 39706398 in words is "thirty-nine million, seven hundred six thousand, three hundred ninety-eight".