696658442 has 4 divisors (see below), whose sum is σ = 1044987666. Its totient is φ = 348329220.

The previous prime is 696658439. The next prime is 696658481. The reversal of 696658442 is 244856696.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 631064641 + 65593801 = 25121^2 + 8099^2 .

It is a super-3 number, since 3×696658442³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174164609 + ... + 174164612.

Almost surely, 2^696658442 is an apocalyptic number.

696658442 is a deficient number, since it is larger than the sum of its proper divisors (348329224).

696658442 is a wasteful number, since it uses less digits than its factorization.

696658442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348329223.

The product of its digits is 2488320, while the sum is 50.

The square root of 696658442 is about 26394.2880563201. The cubic root of 696658442 is about 886.4888986962.

The spelling of 696658442 in words is "six hundred ninety-six million, six hundred fifty-eight thousand, four hundred forty-two".