699230408 has 12 divisors (see below), whose sum is σ = 1311197265. Its totient is φ = 349577808.

The previous prime is 699230407. The next prime is 699230449. The reversal of 699230408 is 804032996.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 587674564 + 111555844 = 24242^2 + 10562^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=18698.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (699230401) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 70118 + ... + 79466.

Almost surely, 2^699230408 is an apocalyptic number.

It is an amenable number.

699230408 is a deficient number, since it is larger than the sum of its proper divisors (611966857).

699230408 is an frugal number, since it uses more digits than its factorization.

699230408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18704 (or 9351 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 699230408 is about 26442.9651892521. The cubic root of 699230408 is about 887.5784901288.

Multiplying 699230408 by its product of nonzero digits (93312), we get a square (65246587831296 = 8077536²).

The spelling of 699230408 in words is "six hundred ninety-nine million, two hundred thirty thousand, four hundred eight".