42972897 has 8 divisors (see below), whose sum is σ = 62506080. Its totient is φ = 26044160.

The previous prime is 42972871. The next prime is 42972907. The reversal of 42972897 is 79827924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42972897 - 2⁶ = 42972833 is a prime.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (42972817) 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, 651072 + ... + 651137.

It is an arithmetic number, because the mean of its divisors is an integer number (7813260).

Almost surely, 2^42972897 is an apocalyptic number.

It is an amenable number.

42972897 is a deficient number, since it is larger than the sum of its proper divisors (19533183).

42972897 is a wasteful number, since it uses less digits than its factorization.

42972897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302223.

The product of its digits is 508032, while the sum is 48.

The square root of 42972897 is about 6555.3716141802. The cubic root of 42972897 is about 350.2661839036.

The spelling of 42972897 in words is "forty-two million, nine hundred seventy-two thousand, eight hundred ninety-seven".