970399 has 4 divisors (see below), whose sum is σ = 996664. Its totient is φ = 944136.

The previous prime is 970391. The next prime is 970421. The reversal of 970399 is 993079.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 970399 - 2³ = 970391 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 26227 = 970399 / (9 + 7 + 0 + 3 + 9 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (970391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13077 + ... + 13150.

It is an arithmetic number, because the mean of its divisors is an integer number (249166).

2⁹⁷⁰³⁹⁹ is an apocalyptic number.

970399 is a deficient number, since it is larger than the sum of its proper divisors (26265).

970399 is a wasteful number, since it uses less digits than its factorization.

970399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26264.

The product of its (nonzero) digits is 15309, while the sum is 37.

The square root of 970399 is about 985.0883209134. The cubic root of 970399 is about 99.0034008967.

It can be divided in two parts, 970 and 399, that added together give a square (1369 = 37²).

The spelling of 970399 in words is "nine hundred seventy thousand, three hundred ninety-nine".