697312403 has 4 divisors (see below), whose sum is σ = 698034480. Its totient is φ = 696590328.

The previous prime is 697312391. The next prime is 697312439. The reversal of 697312403 is 304213796.

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 697312403 - 2¹² = 697308307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697312463) 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, 359588 + ... + 361521.

It is an arithmetic number, because the mean of its divisors is an integer number (174508620).

Almost surely, 2^697312403 is an apocalyptic number.

697312403 is a deficient number, since it is larger than the sum of its proper divisors (722077).

697312403 is an equidigital number, since it uses as much as digits as its factorization.

697312403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722076.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 697312403 is about 26406.6734557763. The cubic root of 697312403 is about 886.7661975976.

The spelling of 697312403 in words is "six hundred ninety-seven million, three hundred twelve thousand, four hundred three".