1397001 has 8 divisors (see below), whose sum is σ = 1888480. Its totient is φ = 918432.

The previous prime is 1396999. The next prime is 1397021. The reversal of 1397001 is 1007931.

1397001 = T₁₅₈ + T₁₅₉ + ... + T₂₃₀.

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

It is not a de Polignac number, because 1397001 - 2¹ = 1396999 is a prime.

It is a super-2 number, since 2×1397001² = 3903223588002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1397021) 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, 2971 + ... + 3408.

It is an arithmetic number, because the mean of its divisors is an integer number (236060).

2^1397001 is an apocalyptic number.

It is an amenable number.

1397001 is a deficient number, since it is larger than the sum of its proper divisors (491479).

1397001 is an equidigital number, since it uses as much as digits as its factorization.

1397001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6455.

The product of its (nonzero) digits is 189, while the sum is 21.

The square root of 1397001 is about 1181.9479683979. The cubic root of 1397001 is about 111.7889573847.

It can be divided in two parts, 139 and 7001, that added together give a triangular number (7140 = T₁₁₉).

The spelling of 1397001 in words is "one million, three hundred ninety-seven thousand, one".