697040000 has 80 divisors (see below), whose sum is σ = 1735436670. Its totient is φ = 278784000.

The previous prime is 697039999. The next prime is 697040011. The reversal of 697040000 is 40796.

It can be written as a sum of positive squares in 5 ways, for example, as 113720896 + 583319104 = 10664^2 + 24152^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75644 + ... + 84356.

Almost surely, 2^697040000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 697040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (867718335).

697040000 is an abundant number, since it is smaller than the sum of its proper divisors (1038396670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

697040000 is an frugal number, since it uses more digits than its factorization.

697040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8747 (or 8720 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 697040000 is about 26401.5151080388. The cubic root of 697040000 is about 886.6507117059.

Adding to 697040000 its reverse (40796), we get a palindrome (697080796).

The spelling of 697040000 in words is "six hundred ninety-seven million, forty thousand".