697493673 has 10 divisors (see below), whose sum is σ = 1041935114. Its totient is φ = 464995728.

The previous prime is 697493647. The next prime is 697493683. The reversal of 697493673 is 376394796.

697493673 is a `hidden beast` number, since 6 + 97 + 493 + 67 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 611226729 + 86266944 = 24723^2 + 9288^2 .

It is not a de Polignac number, because 697493673 - 2⁸ = 697493417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (697493603) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4305436 + ... + 4305597.

Almost surely, 2^697493673 is an apocalyptic number.

It is an amenable number.

697493673 is a deficient number, since it is larger than the sum of its proper divisors (344441441).

697493673 is an equidigital number, since it uses as much as digits as its factorization.

697493673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8611045 (or 8611036 counting only the distinct ones).

The product of its digits is 5143824, while the sum is 54.

The square root of 697493673 is about 26410.1055090660. The cubic root of 697493673 is about 886.8430307746.

The spelling of 697493673 in words is "six hundred ninety-seven million, four hundred ninety-three thousand, six hundred seventy-three".