72000766 has 8 divisors (see below), whose sum is σ = 113685480. Its totient is φ = 34105608.

The previous prime is 72000751. The next prime is 72000767. The reversal of 72000766 is 66700027.

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

It is a super-2 number, since 2×72000766² = 10368220609173512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72000767) 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, 947341 + ... + 947416.

It is an arithmetic number, because the mean of its divisors is an integer number (14210685).

Almost surely, 2^72000766 is an apocalyptic number.

72000766 is a deficient number, since it is larger than the sum of its proper divisors (41684714).

72000766 is a wasteful number, since it uses less digits than its factorization.

72000766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894778.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72000766 is about 8485.3265111014. The cubic root of 72000766 is about 416.0182399239.

The spelling of 72000766 in words is "seventy-two million, seven hundred sixty-six", and thus it is an aban number.