72349787 has 2 divisors, whose sum is σ = 72349788. Its totient is φ = 72349786.

The previous prime is 72349759. The next prime is 72349793. The reversal of 72349787 is 78794327.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72349787 - 2⁶ = 72349723 is a prime.

It is not a weakly prime, because it can be changed into another prime (72349757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36174893 + 36174894.

It is an arithmetic number, because the mean of its divisors is an integer number (36174894).

Almost surely, 2^72349787 is an apocalyptic number.

72349787 is a deficient number, since it is larger than the sum of its proper divisors (1).

72349787 is an equidigital number, since it uses as much as digits as its factorization.

72349787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 47.

The square root of 72349787 is about 8505.8677981732. The cubic root of 72349787 is about 416.6893675810.

The spelling of 72349787 in words is "seventy-two million, three hundred forty-nine thousand, seven hundred eighty-seven".