697894403 has 4 divisors (see below), whose sum is σ = 698963808. Its totient is φ = 696825000.

The previous prime is 697894391. The next prime is 697894427. The reversal of 697894403 is 304498796.

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 697894403 - 2⁸ = 697894147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697893403) 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 3 ways as a sum of consecutive naturals, for example, 533723 + ... + 535028.

It is an arithmetic number, because the mean of its divisors is an integer number (174740952).

Almost surely, 2^697894403 is an apocalyptic number.

697894403 is a deficient number, since it is larger than the sum of its proper divisors (1069405).

697894403 is a wasteful number, since it uses less digits than its factorization.

697894403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069404.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 697894403 is about 26417.6910989587. The cubic root of 697894403 is about 887.0128371273.

The spelling of 697894403 in words is "six hundred ninety-seven million, eight hundred ninety-four thousand, four hundred three".