72411766 has 16 divisors (see below), whose sum is σ = 125836704. Its totient is φ = 30608064.

The previous prime is 72411763. The next prime is 72411767. The reversal of 72411766 is 66711427.

It is a happy number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72411763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34405 + ... + 36448.

It is an arithmetic number, because the mean of its divisors is an integer number (7864794).

Almost surely, 2^72411766 is an apocalyptic number.

72411766 is a deficient number, since it is larger than the sum of its proper divisors (53424938).

72411766 is a wasteful number, since it uses less digits than its factorization.

72411766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70935.

The product of its digits is 14112, while the sum is 34.

The square root of 72411766 is about 8509.5103266874. The cubic root of 72411766 is about 416.8083203345.

The spelling of 72411766 in words is "seventy-two million, four hundred eleven thousand, seven hundred sixty-six".