972019654 has 4 divisors (see below), whose sum is σ = 1458029484. Its totient is φ = 486009826.

The previous prime is 972019639. The next prime is 972019661. The reversal of 972019654 is 456910279.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 456910279 = 7 ⋅65272897.

It is a self number, because there is not a number n which added to its sum of digits gives 972019654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243004912 + ... + 243004915.

It is an arithmetic number, because the mean of its divisors is an integer number (364507371).

Almost surely, 2^972019654 is an apocalyptic number.

972019654 is a deficient number, since it is larger than the sum of its proper divisors (486009830).

972019654 is a wasteful number, since it uses less digits than its factorization.

972019654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486009829.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 972019654 is about 31177.2297358184. The cubic root of 972019654 is about 990.5848511746.

The spelling of 972019654 in words is "nine hundred seventy-two million, nineteen thousand, six hundred fifty-four".