691424967 has 8 divisors (see below), whose sum is σ = 925926640. Its totient is φ = 458936640.

The previous prime is 691424959. The next prime is 691425013. The reversal of 691424967 is 769424196.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 691424967 - 2³ = 691424959 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 (691424917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502534 + ... + 503907.

It is an arithmetic number, because the mean of its divisors is an integer number (115740830).

Almost surely, 2^691424967 is an apocalyptic number.

691424967 is a deficient number, since it is larger than the sum of its proper divisors (234501673).

691424967 is a wasteful number, since it uses less digits than its factorization.

691424967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1006673.

The product of its digits is 653184, while the sum is 48.

The square root of 691424967 is about 26294.9608670559. The cubic root of 691424967 is about 884.2634735180.

The spelling of 691424967 in words is "six hundred ninety-one million, four hundred twenty-four thousand, nine hundred sixty-seven".