72196801 has 2 divisors, whose sum is σ = 72196802. Its totient is φ = 72196800.

The previous prime is 72196771. The next prime is 72196811. The reversal of 72196801 is 10869127.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60466176 + 11730625 = 7776^2 + 3425^2 .

It is a cyclic number.

It is not a de Polignac number, because 72196801 - 2⁵ = 72196769 is a prime.

It is not a weakly prime, because it can be changed into another prime (72196811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36098400 + 36098401.

It is an arithmetic number, because the mean of its divisors is an integer number (36098401).

Almost surely, 2^72196801 is an apocalyptic number.

It is an amenable number.

72196801 is a deficient number, since it is larger than the sum of its proper divisors (1).

72196801 is an equidigital number, since it uses as much as digits as its factorization.

72196801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 72196801 is about 8496.8700707967. The cubic root of 72196801 is about 416.3954592077.

The spelling of 72196801 in words is "seventy-two million, one hundred ninety-six thousand, eight hundred one".