972788 has 6 divisors (see below), whose sum is σ = 1702386. Its totient is φ = 486392.

The previous prime is 972787. The next prime is 972793. The reversal of 972788 is 887279.

It can be written as a sum of positive squares in only one way, i.e., 964324 + 8464 = 982^2 + 92^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 972788.

It is not an unprimeable number, because it can be changed into a prime (972787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121595 + ... + 121602.

It is an arithmetic number, because the mean of its divisors is an integer number (283731).

2⁹⁷²⁷⁸⁸ is an apocalyptic number.

It is an amenable number.

972788 is a deficient number, since it is larger than the sum of its proper divisors (729598).

972788 is a wasteful number, since it uses less digits than its factorization.

972788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243201 (or 243199 counting only the distinct ones).

The product of its digits is 56448, while the sum is 41.

The square root of 972788 is about 986.3001571530. The cubic root of 972788 is about 99.0845789469.

The spelling of 972788 in words is "nine hundred seventy-two thousand, seven hundred eighty-eight".