699009245 has 16 divisors (see below), whose sum is σ = 915639552. Its totient is φ = 508052160.

The previous prime is 699009211. The next prime is 699009253. The reversal of 699009245 is 542900996.

It is a de Polignac number, because none of the positive numbers 2^k-699009245 is a prime.

It is a super-2 number, since 2×699009245² = 977227849190940050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 699009196 and 699009205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118844 + ... + 124586.

It is an arithmetic number, because the mean of its divisors is an integer number (57227472).

Almost surely, 2^699009245 is an apocalyptic number.

It is an amenable number.

699009245 is a deficient number, since it is larger than the sum of its proper divisors (216630307).

699009245 is a wasteful number, since it uses less digits than its factorization.

699009245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7972.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 699009245 is about 26438.7829712338. The cubic root of 699009245 is about 887.4849014161.

The spelling of 699009245 in words is "six hundred ninety-nine million, nine thousand, two hundred forty-five".