697663479 has 16 divisors (see below), whose sum is σ = 941239040. Its totient is φ = 459613440.

The previous prime is 697663403. The next prime is 697663481. The reversal of 697663479 is 974366796.

It is not a de Polignac number, because 697663479 - 2²¹ = 695566327 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 (697668479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 248574 + ... + 251364.

It is an arithmetic number, because the mean of its divisors is an integer number (58827440).

Almost surely, 2^697663479 is an apocalyptic number.

697663479 is a deficient number, since it is larger than the sum of its proper divisors (243575561).

697663479 is a wasteful number, since it uses less digits than its factorization.

697663479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750.

The product of its digits is 10287648, while the sum is 57.

The square root of 697663479 is about 26413.3201055831. The cubic root of 697663479 is about 886.9149927410.

The spelling of 697663479 in words is "six hundred ninety-seven million, six hundred sixty-three thousand, four hundred seventy-nine".