72411719 has 4 divisors (see below), whose sum is σ = 72438120. Its totient is φ = 72385320.

The previous prime is 72411709. The next prime is 72411739. The reversal of 72411719 is 91711427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91711427 = 29 ⋅3162463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72411719 is a prime.

It is a super-2 number, since 2×72411719² = 10486914097069922, 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 (72411709) 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, 8537 + ... + 14754.

It is an arithmetic number, because the mean of its divisors is an integer number (18109530).

Almost surely, 2^72411719 is an apocalyptic number.

72411719 is a deficient number, since it is larger than the sum of its proper divisors (26401).

72411719 is a wasteful number, since it uses less digits than its factorization.

72411719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26400.

The product of its digits is 3528, while the sum is 32.

The square root of 72411719 is about 8509.5075650710. The cubic root of 72411719 is about 416.8082301558.

The spelling of 72411719 in words is "seventy-two million, four hundred eleven thousand, seven hundred nineteen".