1972870 has 16 divisors (see below), whose sum is σ = 3674160. Its totient is φ = 761824.

The previous prime is 1972849. The next prime is 1972889. The reversal of 1972870 is 782791.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3112 + ... + 3691.

It is an arithmetic number, because the mean of its divisors is an integer number (229635).

2^1972870 is an apocalyptic number.

1972870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972870 is a deficient number, since it is larger than the sum of its proper divisors (1701290).

1972870 is a wasteful number, since it uses less digits than its factorization.

1972870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6839.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 1972870 is about 1404.5889078303. The cubic root of 1972870 is about 125.4198151303.

The spelling of 1972870 in words is "one million, nine hundred seventy-two thousand, eight hundred seventy".