972403081 has 8 divisors (see below), whose sum is σ = 1056472200. Its totient is φ = 889658112.

The previous prime is 972403063. The next prime is 972403087. The reversal of 972403081 is 180304279.

It can be written as a sum of positive squares in 4 ways, for example, as 13571856 + 958831225 = 3684^2 + 30965^2 .

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 972403081 - 2⁹ = 972402569 is a prime.

It is a super-2 number, since 2×972403081² = 1891135503876585122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972403087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329506 + ... + 332443.

It is an arithmetic number, because the mean of its divisors is an integer number (132059025).

Almost surely, 2^972403081 is an apocalyptic number.

It is an amenable number.

972403081 is a deficient number, since it is larger than the sum of its proper divisors (84069119).

972403081 is a wasteful number, since it uses less digits than its factorization.

972403081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 662075.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 972403081 is about 31183.3782807444. The cubic root of 972403081 is about 990.7150841542.

It can be divided in two parts, 9 and 72403081, that multiplied together give a square (651627729 = 25527²).

The spelling of 972403081 in words is "nine hundred seventy-two million, four hundred three thousand, eighty-one".