870493405 has 8 divisors (see below), whose sum is σ = 1044788184. Its totient is φ = 696264000.

The previous prime is 870493373. The next prime is 870493451. The reversal of 870493405 is 504394078.

It can be written as a sum of positive squares in 4 ways, for example, as 71470116 + 799023289 = 8454^2 + 28267^2 .

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

It is not a de Polignac number, because 870493405 - 2⁵ = 870493373 is a prime.

It is a super-3 number, since 3×870493405³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20515 + ... + 46495.

It is an arithmetic number, because the mean of its divisors is an integer number (130598523).

Almost surely, 2^870493405 is an apocalyptic number.

It is an amenable number.

870493405 is a deficient number, since it is larger than the sum of its proper divisors (174294779).

870493405 is a wasteful number, since it uses less digits than its factorization.

870493405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32687.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 870493405 is about 29504.1252200434. The cubic root of 870493405 is about 954.8207059040.

The spelling of 870493405 in words is "eight hundred seventy million, four hundred ninety-three thousand, four hundred five".