662998951 has 2 divisors, whose sum is σ = 662998952. Its totient is φ = 662998950.

The previous prime is 662998933. The next prime is 662998979. The reversal of 662998951 is 159899266.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 662998951 - 2¹¹ = 662996903 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 662998892 and 662998901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (662998981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 331499475 + 331499476.

It is an arithmetic number, because the mean of its divisors is an integer number (331499476).

Almost surely, 2^662998951 is an apocalyptic number.

662998951 is a deficient number, since it is larger than the sum of its proper divisors (1).

662998951 is an equidigital number, since it uses as much as digits as its factorization.

662998951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2099520, while the sum is 55.

The square root of 662998951 is about 25748.7660092673. The cubic root of 662998951 is about 871.9754954642.

The spelling of 662998951 in words is "six hundred sixty-two million, nine hundred ninety-eight thousand, nine hundred fifty-one".