39879036 has 18 divisors (see below), whose sum is σ = 100805432. Its totient is φ = 13293000.

The previous prime is 39879023. The next prime is 39879041. The reversal of 39879036 is 63097893.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 39878982 and 39879000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 553840 + ... + 553911.

Almost surely, 2^39879036 is an apocalyptic number.

39879036 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39879036 is an abundant number, since it is smaller than the sum of its proper divisors (60926396).

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

39879036 is a wasteful number, since it uses less digits than its factorization.

39879036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107761 (or 1107756 counting only the distinct ones).

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

The square root of 39879036 is about 6314.9850356117. The cubic root of 39879036 is about 341.6500986876.

The spelling of 39879036 in words is "thirty-nine million, eight hundred seventy-nine thousand, thirty-six".