1670367397 has 8 divisors (see below), whose sum is σ = 1694007000. Its totient is φ = 1646836224.

The previous prime is 1670367367. The next prime is 1670367401. The reversal of 1670367397 is 7937630761.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1726596 + 1668640801 = 1314^2 + 40849^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1670367397 - 2⁷ = 1670367269 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 1670367397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670367367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4173 + ... + 57949.

It is an arithmetic number, because the mean of its divisors is an integer number (211750875).

Almost surely, 2^1670367397 is an apocalyptic number.

It is an amenable number.

1670367397 is a deficient number, since it is larger than the sum of its proper divisors (23639603).

1670367397 is an equidigital number, since it uses as much as digits as its factorization.

1670367397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54215.

The product of its (nonzero) digits is 1000188, while the sum is 49.

The square root of 1670367397 is about 40870.1284191768. The cubic root of 1670367397 is about 1186.5079929851.

It can be divided in two parts, 16703 and 67397, that added together give a square (84100 = 290²).

The spelling of 1670367397 in words is "one billion, six hundred seventy million, three hundred sixty-seven thousand, three hundred ninety-seven".