726764745 has 32 divisors (see below), whose sum is σ = 1348789248. Its totient is φ = 327273408.

The previous prime is 726764743. The next prime is 726764747. The reversal of 726764745 is 547467627.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (726764743) and next prime (726764747).

It is not a de Polignac number, because 726764745 - 2¹ = 726764743 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726764694 and 726764703.

It is not an unprimeable number, because it can be changed into a prime (726764743) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44619 + ... + 58688.

It is an arithmetic number, because the mean of its divisors is an integer number (42149664).

Almost surely, 2^726764745 is an apocalyptic number.

It is an amenable number.

726764745 is a deficient number, since it is larger than the sum of its proper divisors (622024503).

726764745 is a wasteful number, since it uses less digits than its factorization.

726764745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103389.

The product of its digits is 1975680, while the sum is 48.

The square root of 726764745 is about 26958.5746099455. The cubic root of 726764745 is about 899.0792002163.

It can be divided in two parts, 72676 and 4745, that added together give a triangular number (77421 = T₃₉₃).

The spelling of 726764745 in words is "seven hundred twenty-six million, seven hundred sixty-four thousand, seven hundred forty-five".