1972901 has 16 divisors (see below), whose sum is σ = 2436480. Its totient is φ = 1559040.

The previous prime is 1972891. The next prime is 1972913. The reversal of 1972901 is 1092791.

It is not a de Polignac number, because 1972901 - 2¹⁴ = 1956517 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1972921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6881 + ... + 7161.

It is an arithmetic number, because the mean of its divisors is an integer number (152280).

2^1972901 is an apocalyptic number.

It is an amenable number.

1972901 is a deficient number, since it is larger than the sum of its proper divisors (463579).

1972901 is a wasteful number, since it uses less digits than its factorization.

1972901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 1972901 is about 1404.5999430443. The cubic root of 1972901 is about 125.4204720402.

The spelling of 1972901 in words is "one million, nine hundred seventy-two thousand, nine hundred one".