1972908 has 36 divisors (see below), whose sum is σ = 5700240. Its totient is φ = 563616.

The previous prime is 1972891. The next prime is 1972913. The reversal of 1972908 is 8092791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3663 + ... + 4166.

It is an arithmetic number, because the mean of its divisors is an integer number (158340).

2^1972908 is an apocalyptic number.

1972908 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1972908 is an abundant number, since it is smaller than the sum of its proper divisors (3727332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1972908 is a wasteful number, since it uses less digits than its factorization.

1972908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7846 (or 7841 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 36.

The square root of 1972908 is about 1404.6024348548. The cubic root of 1972908 is about 125.4206203738.

It can be divided in two parts, 19 and 72908, that added together give a palindrome (72927).

The spelling of 1972908 in words is "one million, nine hundred seventy-two thousand, nine hundred eight".