72369853 has 2 divisors, whose sum is σ = 72369854. Its totient is φ = 72369852.

The previous prime is 72369827. The next prime is 72369859. The reversal of 72369853 is 35896327.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72284004 + 85849 = 8502^2 + 293^2 .

It is a cyclic number.

It is not a de Polignac number, because 72369853 - 2¹⁷ = 72238781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72369859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36184926 + 36184927.

It is an arithmetic number, because the mean of its divisors is an integer number (36184927).

Almost surely, 2^72369853 is an apocalyptic number.

It is an amenable number.

72369853 is a deficient number, since it is larger than the sum of its proper divisors (1).

72369853 is an equidigital number, since it uses as much as digits as its factorization.

72369853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 72369853 is about 8507.0472550704. The cubic root of 72369853 is about 416.7278865424.

The spelling of 72369853 in words is "seventy-two million, three hundred sixty-nine thousand, eight hundred fifty-three".