970557771 has 8 divisors (see below), whose sum is σ = 1299880960. Its totient is φ = 644136552.

The previous prime is 970557743. The next prime is 970557793. The reversal of 970557771 is 177755079.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 970557771 - 2¹⁰ = 970556747 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 970557771.

It is not an unprimeable number, because it can be changed into a prime (970557271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 724711 + ... + 726048.

It is an arithmetic number, because the mean of its divisors is an integer number (162485120).

Almost surely, 2^970557771 is an apocalyptic number.

970557771 is a deficient number, since it is larger than the sum of its proper divisors (329323189).

970557771 is a wasteful number, since it uses less digits than its factorization.

970557771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1450985.

The product of its (nonzero) digits is 540225, while the sum is 48.

The square root of 970557771 is about 31153.7761916593. The cubic root of 970557771 is about 990.0880005439.

It can be divided in two parts, 9705 and 57771, that added together give a palindrome (67476).

The spelling of 970557771 in words is "nine hundred seventy million, five hundred fifty-seven thousand, seven hundred seventy-one".