19970975 has 24 divisors (see below), whose sum is σ = 25986432. Its totient is φ = 15206400.

The previous prime is 19970959. The next prime is 19970987. The reversal of 19970975 is 57907991.

It is a happy number.

It is not a de Polignac number, because 19970975 - 2⁴ = 19970959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56399 + ... + 56751.

It is an arithmetic number, because the mean of its divisors is an integer number (1082768).

Almost surely, 2^19970975 is an apocalyptic number.

19970975 is a deficient number, since it is larger than the sum of its proper divisors (6015457).

19970975 is a wasteful number, since it uses less digits than its factorization.

19970975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 47.

The square root of 19970975 is about 4468.8896831316. The cubic root of 19970975 is about 271.3103881348.

The spelling of 19970975 in words is "nineteen million, nine hundred seventy thousand, nine hundred seventy-five".