73752229 has 2 divisors, whose sum is σ = 73752230. Its totient is φ = 73752228.

The previous prime is 73752221. The next prime is 73752241. The reversal of 73752229 is 92225737.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42224004 + 31528225 = 6498^2 + 5615^2 .

It is an emirp because it is prime and its reverse (92225737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73752229 - 2³ = 73752221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73752221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36876114 + 36876115.

It is an arithmetic number, because the mean of its divisors is an integer number (36876115).

Almost surely, 2^73752229 is an apocalyptic number.

It is an amenable number.

73752229 is a deficient number, since it is larger than the sum of its proper divisors (1).

73752229 is an equidigital number, since it uses as much as digits as its factorization.

73752229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 73752229 is about 8587.9117950757. The cubic root of 73752229 is about 419.3645511614.

It can be divided in two parts, 7375 and 2229, that added together give a square (9604 = 98²).

The spelling of 73752229 in words is "seventy-three million, seven hundred fifty-two thousand, two hundred twenty-nine".