870749357 has 2 divisors, whose sum is σ = 870749358. Its totient is φ = 870749356.

The previous prime is 870749323. The next prime is 870749377. The reversal of 870749357 is 753947078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789947236 + 80802121 = 28106^2 + 8989^2 .

It is a cyclic number.

It is not a de Polignac number, because 870749357 - 2¹⁸ = 870487213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (870749377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435374678 + 435374679.

It is an arithmetic number, because the mean of its divisors is an integer number (435374679).

Almost surely, 2^870749357 is an apocalyptic number.

It is an amenable number.

870749357 is a deficient number, since it is larger than the sum of its proper divisors (1).

870749357 is an equidigital number, since it uses as much as digits as its factorization.

870749357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1481760, while the sum is 50.

The square root of 870749357 is about 29508.4624641814. The cubic root of 870749357 is about 954.9142790122.

The spelling of 870749357 in words is "eight hundred seventy million, seven hundred forty-nine thousand, three hundred fifty-seven".