39800705 has 8 divisors (see below), whose sum is σ = 54583872. Its totient is φ = 27291888.

The previous prime is 39800701. The next prime is 39800713. The reversal of 39800705 is 50700893.

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 39800705 - 2² = 39800701 is a prime.

It is a super-2 number, since 2×39800705² = 3168192236994050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (39800701) 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, 568547 + ... + 568616.

It is an arithmetic number, because the mean of its divisors is an integer number (6822984).

Almost surely, 2^39800705 is an apocalyptic number.

39800705 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39800705 is a deficient number, since it is larger than the sum of its proper divisors (14783167).

39800705 is a wasteful number, since it uses less digits than its factorization.

39800705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1137175.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 39800705 is about 6308.7799929939. The cubic root of 39800705 is about 341.4262606541.

The spelling of 39800705 in words is "thirty-nine million, eight hundred thousand, seven hundred five".