72710851 has 2 divisors, whose sum is σ = 72710852. Its totient is φ = 72710850.

The previous prime is 72710837. The next prime is 72710861. The reversal of 72710851 is 15801727.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72710851 - 2¹⁵ = 72678083 is a prime.

It is equal to p_4268065 and since 72710851 and 4268065 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (72710861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36355425 + 36355426.

It is an arithmetic number, because the mean of its divisors is an integer number (36355426).

Almost surely, 2^72710851 is an apocalyptic number.

72710851 is a deficient number, since it is larger than the sum of its proper divisors (1).

72710851 is an equidigital number, since it uses as much as digits as its factorization.

72710851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 31.

The square root of 72710851 is about 8527.0657907630. The cubic root of 72710851 is about 417.3813850232.

The spelling of 72710851 in words is "seventy-two million, seven hundred ten thousand, eight hundred fifty-one".