20694698 has 16 divisors (see below), whose sum is σ = 31957416. Its totient is φ = 10046400.

The previous prime is 20694691. The next prime is 20694703. The reversal of 20694698 is 89649602.

It can be written as a sum of positive squares in 4 ways, for example, as 20457529 + 237169 = 4523^2 + 487^2 .

It is a super-2 number, since 2×20694698² = 856541050622408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20694691) 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, 9740 + ... + 11672.

Almost surely, 2^20694698 is an apocalyptic number.

20694698 is a deficient number, since it is larger than the sum of its proper divisors (11262718).

20694698 is a wasteful number, since it uses less digits than its factorization.

20694698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2089.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 20694698 is about 4549.1425565704. The cubic root of 20694698 is about 274.5488934730.

The spelling of 20694698 in words is "twenty million, six hundred ninety-four thousand, six hundred ninety-eight".