951997 has 2 divisors, whose sum is σ = 951998. Its totient is φ = 951996.

The previous prime is 951967. The next prime is 952001. The reversal of 951997 is 799159.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 622521 + 329476 = 789^2 + 574^2 .

It is a cyclic number.

It is not a de Polignac number, because 951997 - 2¹⁵ = 919229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (951967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 475998 + 475999.

It is an arithmetic number, because the mean of its divisors is an integer number (475999).

2⁹⁵¹⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

951997 is a deficient number, since it is larger than the sum of its proper divisors (1).

951997 is an equidigital number, since it uses as much as digits as its factorization.

951997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25515, while the sum is 40.

The square root of 951997 is about 975.7033360607. The cubic root of 951997 is about 98.3735913554.

The spelling of 951997 in words is "nine hundred fifty-one thousand, nine hundred ninety-seven".