972406427 has 4 divisors (see below), whose sum is σ = 975115440. Its totient is φ = 969697416.

The previous prime is 972406411. The next prime is 972406439. The reversal of 972406427 is 724604279.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 972406427 - 2⁴ = 972406411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (972406447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1353968 + ... + 1354685.

It is an arithmetic number, because the mean of its divisors is an integer number (243778860).

Almost surely, 2^972406427 is an apocalyptic number.

972406427 is a deficient number, since it is larger than the sum of its proper divisors (2709013).

972406427 is a wasteful number, since it uses less digits than its factorization.

972406427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2709012.

The product of its (nonzero) digits is 169344, while the sum is 41.

The square root of 972406427 is about 31183.4319310752. The cubic root of 972406427 is about 990.7162204899.

The spelling of 972406427 in words is "nine hundred seventy-two million, four hundred six thousand, four hundred twenty-seven".