73201969 has 2 divisors, whose sum is σ = 73201970. Its totient is φ = 73201968.

The previous prime is 73201937. The next prime is 73202023. The reversal of 73201969 is 96910237.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59474944 + 13727025 = 7712^2 + 3705^2 .

It is a cyclic number.

It is not a de Polignac number, because 73201969 - 2⁵ = 73201937 is a prime.

It is a super-2 number, since 2×73201969² = 10717056530953922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (73201169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36600984 + 36600985.

It is an arithmetic number, because the mean of its divisors is an integer number (36600985).

Almost surely, 2^73201969 is an apocalyptic number.

It is an amenable number.

73201969 is a deficient number, since it is larger than the sum of its proper divisors (1).

73201969 is an equidigital number, since it uses as much as digits as its factorization.

73201969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 73201969 is about 8555.8149231970. The cubic root of 73201969 is about 418.3189971260.

The spelling of 73201969 in words is "seventy-three million, two hundred one thousand, nine hundred sixty-nine".