690294813 has 8 divisors (see below), whose sum is σ = 991192608. Its totient is φ = 424796784.

The previous prime is 690294793. The next prime is 690294827. The reversal of 690294813 is 318492096.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 690294813 - 2¹² = 690290717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690294013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8849895 + ... + 8849972.

It is an arithmetic number, because the mean of its divisors is an integer number (123899076).

Almost surely, 2^690294813 is an apocalyptic number.

It is an amenable number.

690294813 is a deficient number, since it is larger than the sum of its proper divisors (300897795).

690294813 is a wasteful number, since it uses less digits than its factorization.

690294813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17699883.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 690294813 is about 26273.4621433872. The cubic root of 690294813 is about 883.7814260868.

The spelling of 690294813 in words is "six hundred ninety million, two hundred ninety-four thousand, eight hundred thirteen".