766749 has 8 divisors (see below), whose sum is σ = 1026432. Its totient is φ = 509120.

The previous prime is 766739. The next prime is 766757. The reversal of 766749 is 947667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 766749 - 2⁹ = 766237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 997 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (128304).

2⁷⁶⁶⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

766749 is a deficient number, since it is larger than the sum of its proper divisors (259683).

766749 is a wasteful number, since it uses less digits than its factorization.

766749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027.

The product of its digits is 63504, while the sum is 39.

The square root of 766749 is about 875.6420501552. The cubic root of 766749 is about 91.5273888566.

The spelling of 766749 in words is "seven hundred sixty-six thousand, seven hundred forty-nine".