870418537 has 2 divisors, whose sum is σ = 870418538. Its totient is φ = 870418536.

The previous prime is 870418531. The next prime is 870418541. The reversal of 870418537 is 735814078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 588984361 + 281434176 = 24269^2 + 16776^2 .

It is a cyclic number.

It is not a de Polignac number, because 870418537 - 2²³ = 862029929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 870418493 and 870418502.

It is not a weakly prime, because it can be changed into another prime (870418531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435209268 + 435209269.

It is an arithmetic number, because the mean of its divisors is an integer number (435209269).

Almost surely, 2^870418537 is an apocalyptic number.

It is an amenable number.

870418537 is a deficient number, since it is larger than the sum of its proper divisors (1).

870418537 is an equidigital number, since it uses as much as digits as its factorization.

870418537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 870418537 is about 29502.8564210315. The cubic root of 870418537 is about 954.7933315568.

The spelling of 870418537 in words is "eight hundred seventy million, four hundred eighteen thousand, five hundred thirty-seven".