970405 has 8 divisors (see below), whose sum is σ = 1169784. Its totient is φ = 772800.

The previous prime is 970391. The next prime is 970421. The reversal of 970405 is 504079.

970405 = 307² + 308² + ... + 316².

It can be written as a sum of positive squares in 4 ways, for example, as 15876 + 954529 = 126^2 + 977^2 .

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

It is not a de Polignac number, because 970405 - 2¹⁵ = 937637 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 970405.

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, 1875 + ... + 2335.

It is an arithmetic number, because the mean of its divisors is an integer number (146223).

2⁹⁷⁰⁴⁰⁵ is an apocalyptic number.

It is an amenable number.

970405 is a deficient number, since it is larger than the sum of its proper divisors (199379).

970405 is a wasteful number, since it uses less digits than its factorization.

970405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 970405 is about 985.0913663209. The cubic root of 970405 is about 99.0036049430.

The spelling of 970405 in words is "nine hundred seventy thousand, four hundred five".