951955397 has 4 divisors (see below), whose sum is σ = 952126956. Its totient is φ = 951783840.

The previous prime is 951955391. The next prime is 951955399. The reversal of 951955397 is 793559159.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 793559159 = 997 ⋅795947.

It can be written as a sum of positive squares in 2 ways, for example, as 718293601 + 233661796 = 26801^2 + 15286^2 .

It is a cyclic number.

It is not a de Polignac number, because 951955397 - 2¹⁰ = 951954373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (951955391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77168 + ... + 88649.

It is an arithmetic number, because the mean of its divisors is an integer number (238031739).

Almost surely, 2^951955397 is an apocalyptic number.

It is an amenable number.

951955397 is a deficient number, since it is larger than the sum of its proper divisors (171559).

951955397 is a wasteful number, since it uses less digits than its factorization.

951955397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171558.

The product of its digits is 1913625, while the sum is 53.

The square root of 951955397 is about 30853.7744368497. The cubic root of 951955397 is about 983.7215833398.

The spelling of 951955397 in words is "nine hundred fifty-one million, nine hundred fifty-five thousand, three hundred ninety-seven".