870983497 has 2 divisors, whose sum is σ = 870983498. Its totient is φ = 870983496.

The previous prime is 870983473. The next prime is 870983507. The reversal of 870983497 is 794389078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 847741456 + 23242041 = 29116^2 + 4821^2 .

It is a cyclic number.

It is not a de Polignac number, because 870983497 - 2²⁷ = 736765769 is a prime.

It is a super-2 number, since 2×870983497² = 1517224504092698018, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (870980497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435491748 + 435491749.

It is an arithmetic number, because the mean of its divisors is an integer number (435491749).

Almost surely, 2^870983497 is an apocalyptic number.

It is an amenable number.

870983497 is a deficient number, since it is larger than the sum of its proper divisors (1).

870983497 is an equidigital number, since it uses as much as digits as its factorization.

870983497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3048192, while the sum is 55.

The square root of 870983497 is about 29512.4295340116. The cubic root of 870983497 is about 954.9998618459. Note that the first 3 decimals are identical.

The spelling of 870983497 in words is "eight hundred seventy million, nine hundred eighty-three thousand, four hundred ninety-seven".