966555437 has 2 divisors, whose sum is σ = 966555438. Its totient is φ = 966555436.

The previous prime is 966555409. The next prime is 966555449. The reversal of 966555437 is 734555669.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504047401 + 462508036 = 22451^2 + 21506^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-966555437 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 (966555487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 483277718 + 483277719.

It is an arithmetic number, because the mean of its divisors is an integer number (483277719).

Almost surely, 2^966555437 is an apocalyptic number.

It is an amenable number.

966555437 is a deficient number, since it is larger than the sum of its proper divisors (1).

966555437 is an equidigital number, since it uses as much as digits as its factorization.

966555437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 50.

The square root of 966555437 is about 31089.4746980389. The cubic root of 966555437 is about 988.7251682617.

The spelling of 966555437 in words is "nine hundred sixty-six million, five hundred fifty-five thousand, four hundred thirty-seven".