690452403 has 4 divisors (see below), whose sum is σ = 920603208. Its totient is φ = 460301600.

The previous prime is 690452393. The next prime is 690452417. The reversal of 690452403 is 304254096.

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 690452403 - 2⁶ = 690452339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (690452443) 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, 115075398 + ... + 115075403.

It is an arithmetic number, because the mean of its divisors is an integer number (230150802).

Almost surely, 2^690452403 is an apocalyptic number.

690452403 is a deficient number, since it is larger than the sum of its proper divisors (230150805).

690452403 is a wasteful number, since it uses less digits than its factorization.

690452403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230150804.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 690452403 is about 26276.4610060031. The cubic root of 690452403 is about 883.8486748985.

The spelling of 690452403 in words is "six hundred ninety million, four hundred fifty-two thousand, four hundred three".