208950907 has 12 divisors (see below), whose sum is σ = 232265880. Its totient is φ = 187811360.

The previous prime is 208950853. The next prime is 208950949. The reversal of 208950907 is 709059802.

It is not a de Polignac number, because 208950907 - 2¹⁹ = 208426619 is a prime.

It is a super-2 number, since 2×208950907² = 87320963072245298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 208950907.

It is not an unprimeable number, because it can be changed into a prime (208950977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1068 + ... + 20470.

It is an arithmetic number, because the mean of its divisors is an integer number (19355490).

Almost surely, 2^208950907 is an apocalyptic number.

208950907 is a deficient number, since it is larger than the sum of its proper divisors (23314973).

208950907 is a wasteful number, since it uses less digits than its factorization.

208950907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19514 (or 19503 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 208950907 is about 14455.1342781726. The cubic root of 208950907 is about 593.4007445256.

The spelling of 208950907 in words is "two hundred eight million, nine hundred fifty thousand, nine hundred seven".