690367407 has 4 divisors (see below), whose sum is σ = 920489880. Its totient is φ = 460244936.

The previous prime is 690367367. The next prime is 690367477. The reversal of 690367407 is 704763096.

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

It is a cyclic number.

It is not a de Polignac number, because 690367407 - 2²⁰ = 689318831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (690367477) 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, 115061232 + ... + 115061237.

It is an arithmetic number, because the mean of its divisors is an integer number (230122470).

Almost surely, 2^690367407 is an apocalyptic number.

690367407 is a deficient number, since it is larger than the sum of its proper divisors (230122473).

690367407 is a wasteful number, since it uses less digits than its factorization.

690367407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230122472.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 690367407 is about 26274.8436151388. The cubic root of 690367407 is about 883.8124055943.

The spelling of 690367407 in words is "six hundred ninety million, three hundred sixty-seven thousand, four hundred seven".