690449367 has 4 divisors (see below), whose sum is σ = 920599160. Its totient is φ = 460299576.

The previous prime is 690449311. The next prime is 690449387. The reversal of 690449367 is 763944096.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 690449367 - 2⁷ = 690449239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690449387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115074892 + ... + 115074897.

It is an arithmetic number, because the mean of its divisors is an integer number (230149790).

Almost surely, 2^690449367 is an apocalyptic number.

690449367 is a deficient number, since it is larger than the sum of its proper divisors (230149793).

690449367 is a wasteful number, since it uses less digits than its factorization.

690449367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230149792.

The product of its (nonzero) digits is 979776, while the sum is 48.

The square root of 690449367 is about 26276.4032356029. The cubic root of 690449367 is about 883.8473794346.

The spelling of 690449367 in words is "six hundred ninety million, four hundred forty-nine thousand, three hundred sixty-seven".