697381776 has 240 divisors, whose sum is σ = 2529421440. Its totient is φ = 174182400.

The previous prime is 697381759. The next prime is 697381777. The reversal of 697381776 is 677183796.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (697381777) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 247576 + ... + 250376.

It is an arithmetic number, because the mean of its divisors is an integer number (10539256).

Almost surely, 2^697381776 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 697381776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1264710720).

697381776 is an abundant number, since it is smaller than the sum of its proper divisors (1832039664).

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

697381776 is a wasteful number, since it uses less digits than its factorization.

697381776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854 (or 2845 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 697381776 is about 26407.9869736411. The cubic root of 697381776 is about 886.7956036387.

The spelling of 697381776 in words is "six hundred ninety-seven million, three hundred eighty-one thousand, seven hundred seventy-six".