699240997 has 8 divisors (see below), whose sum is σ = 860604416. Its totient is φ = 553245552.

The previous prime is 699240989. The next prime is 699241003. The reversal of 699240997 is 799042996.

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

It is a cyclic number.

It is not a de Polignac number, because 699240997 - 2³ = 699240989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (699240947) 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, 3841893 + ... + 3842074.

It is an arithmetic number, because the mean of its divisors is an integer number (107575552).

Almost surely, 2^699240997 is an apocalyptic number.

It is an amenable number.

699240997 is a deficient number, since it is larger than the sum of its proper divisors (161363419).

699240997 is a wasteful number, since it uses less digits than its factorization.

699240997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7683987.

The product of its (nonzero) digits is 2204496, while the sum is 55.

The square root of 699240997 is about 26443.1654118791. The cubic root of 699240997 is about 887.5829705410.

The spelling of 699240997 in words is "six hundred ninety-nine million, two hundred forty thousand, nine hundred ninety-seven".