7001997 has 4 divisors (see below), whose sum is σ = 9336000. Its totient is φ = 4667996.

The previous prime is 7001927. The next prime is 7001999. The reversal of 7001997 is 7991007.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7991007 = 3 ⋅2663669.

It is a cyclic number.

It is not a de Polignac number, because 7001997 - 2¹² = 6997901 is a prime.

It is a D-number.

7001997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7001999) 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, 1166997 + ... + 1167002.

It is an arithmetic number, because the mean of its divisors is an integer number (2334000).

Almost surely, 2^7001997 is an apocalyptic number.

It is an amenable number.

7001997 is a deficient number, since it is larger than the sum of its proper divisors (2334003).

7001997 is a wasteful number, since it uses less digits than its factorization.

7001997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334002.

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 7001997 is about 2646.1286816782. The cubic root of 7001997 is about 191.3113076123.

The spelling of 7001997 in words is "seven million, one thousand, nine hundred ninety-seven".