696981499 has 2 divisors, whose sum is σ = 696981500. Its totient is φ = 696981498.

The previous prime is 696981449. The next prime is 696981553. The reversal of 696981499 is 994189696.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 696981499 - 2¹⁵ = 696948731 is a prime.

It is not a weakly prime, because it can be changed into another prime (696981449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 348490749 + 348490750.

It is an arithmetic number, because the mean of its divisors is an integer number (348490750).

Almost surely, 2^696981499 is an apocalyptic number.

696981499 is a deficient number, since it is larger than the sum of its proper divisors (1).

696981499 is an equidigital number, since it uses as much as digits as its factorization.

696981499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7558272, while the sum is 61.

The square root of 696981499 is about 26400.4071748903. The cubic root of 696981499 is about 886.6259061450.

The spelling of 696981499 in words is "six hundred ninety-six million, nine hundred eighty-one thousand, four hundred ninety-nine".