766120447 has 4 divisors (see below), whose sum is σ = 767335216. Its totient is φ = 764905680.

The previous prime is 766120441. The next prime is 766120469. The reversal of 766120447 is 744021667.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 766120447 - 2¹⁹ = 765596159 is a prime.

It is a super-2 number, since 2×766120447² = 1173881078622959618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766120441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606438 + ... + 607699.

It is an arithmetic number, because the mean of its divisors is an integer number (191833804).

Almost surely, 2^766120447 is an apocalyptic number.

766120447 is a deficient number, since it is larger than the sum of its proper divisors (1214769).

766120447 is a wasteful number, since it uses less digits than its factorization.

766120447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1214768.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 766120447 is about 27678.8808841687. The cubic root of 766120447 is about 915.0237174220.

The spelling of 766120447 in words is "seven hundred sixty-six million, one hundred twenty thousand, four hundred forty-seven".