697987214 has 8 divisors (see below), whose sum is σ = 1056246480. Its totient is φ = 345905056.

The previous prime is 697987151. The next prime is 697987231. The reversal of 697987214 is 412789796.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543994 + ... + 1544445.

It is an arithmetic number, because the mean of its divisors is an integer number (132030810).

Almost surely, 2^697987214 is an apocalyptic number.

697987214 is a deficient number, since it is larger than the sum of its proper divisors (358259266).

697987214 is a wasteful number, since it uses less digits than its factorization.

697987214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088554.

The product of its digits is 1524096, while the sum is 53.

The square root of 697987214 is about 26419.4476475191. The cubic root of 697987214 is about 887.0521558261.

The spelling of 697987214 in words is "six hundred ninety-seven million, nine hundred eighty-seven thousand, two hundred fourteen".