697428361 has 4 divisors (see below), whose sum is σ = 797060992. Its totient is φ = 597795732.

The previous prime is 697428299. The next prime is 697428377. The reversal of 697428361 is 163824796.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 697428361 - 2⁷ = 697428233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (697429361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49816305 + ... + 49816318.

It is an arithmetic number, because the mean of its divisors is an integer number (199265248).

Almost surely, 2^697428361 is an apocalyptic number.

It is an amenable number.

697428361 is a deficient number, since it is larger than the sum of its proper divisors (99632631).

697428361 is an equidigital number, since it uses as much as digits as its factorization.

697428361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99632630.

The product of its digits is 435456, while the sum is 46.

The square root of 697428361 is about 26408.8689837335. The cubic root of 697428361 is about 886.8153491376.

The spelling of 697428361 in words is "six hundred ninety-seven million, four hundred twenty-eight thousand, three hundred sixty-one".