698943722 has 4 divisors (see below), whose sum is σ = 1048415586. Its totient is φ = 349471860.

The previous prime is 698943697. The next prime is 698943743. The reversal of 698943722 is 227349896.

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., 690585841 + 8357881 = 26279^2 + 2891^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174735929 + ... + 174735932.

Almost surely, 2^698943722 is an apocalyptic number.

698943722 is a deficient number, since it is larger than the sum of its proper divisors (349471864).

698943722 is a wasteful number, since it uses less digits than its factorization.

698943722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349471863.

The product of its digits is 1306368, while the sum is 50.

The square root of 698943722 is about 26437.5437966540. The cubic root of 698943722 is about 887.4571705047.

It can be divided in two parts, 698 and 943722, that multiplied together give a triangular number (658717956 = T₃₆₂₉₆).

The spelling of 698943722 in words is "six hundred ninety-eight million, nine hundred forty-three thousand, seven hundred twenty-two".