970621 has 6 divisors (see below), whose sum is σ = 998970. Its totient is φ = 943056.

The previous prime is 970603. The next prime is 970633. The reversal of 970621 is 126079.

It can be written as a sum of positive squares in 3 ways, for example, as 348100 + 622521 = 590^2 + 789^2 .

It is not a de Polignac number, because 970621 - 2⁷ = 970493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1015 + ... + 1723.

It is an arithmetic number, because the mean of its divisors is an integer number (166495).

2⁹⁷⁰⁶²¹ is an apocalyptic number.

It is an amenable number.

970621 is a deficient number, since it is larger than the sum of its proper divisors (28349).

970621 is an equidigital number, since it uses as much as digits as its factorization.

970621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 970621 is about 985.2009947214. The cubic root of 970621 is about 99.0109500523.

The spelling of 970621 in words is "nine hundred seventy thousand, six hundred twenty-one".