20970088 has 16 divisors (see below), whose sum is σ = 39668580. Its totient is φ = 10391808.

The previous prime is 20970077. The next prime is 20970101. The reversal of 20970088 is 88007902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 13118884 + 7851204 = 3622^2 + 2802^2 .

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, 10695 + ... + 12502.

Almost surely, 2^20970088 is an apocalyptic number.

It is an amenable number.

20970088 is a deficient number, since it is larger than the sum of its proper divisors (18698492).

20970088 is a wasteful number, since it uses less digits than its factorization.

20970088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23316 (or 23312 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 20970088 is about 4579.3108651848. The cubic root of 20970088 is about 275.7613634265.

The spelling of 20970088 in words is "twenty million, nine hundred seventy thousand, eighty-eight".