762651961 has 2 divisors, whose sum is σ = 762651962. Its totient is φ = 762651960.

The previous prime is 762651959. The next prime is 762651973. The reversal of 762651961 is 169156267.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 758671936 + 3980025 = 27544^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 762651961 - 2¹ = 762651959 is a prime.

Together with 762651959, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (762651931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 381325980 + 381325981.

It is an arithmetic number, because the mean of its divisors is an integer number (381325981).

Almost surely, 2^762651961 is an apocalyptic number.

It is an amenable number.

762651961 is a deficient number, since it is larger than the sum of its proper divisors (1).

762651961 is an equidigital number, since it uses as much as digits as its factorization.

762651961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 43.

The square root of 762651961 is about 27616.1539863899. The cubic root of 762651961 is about 913.6407544730.

The spelling of 762651961 in words is "seven hundred sixty-two million, six hundred fifty-one thousand, nine hundred sixty-one".