73772123 has 2 divisors, whose sum is σ = 73772124. Its totient is φ = 73772122.

The previous prime is 73772099. The next prime is 73772137. The reversal of 73772123 is 32127737.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73772123 - 2⁶ = 73772059 is a prime.

It is a super-2 number, since 2×73772123² = 10884652263854258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73772123.

It is not a weakly prime, because it can be changed into another prime (73772173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36886061 + 36886062.

It is an arithmetic number, because the mean of its divisors is an integer number (36886062).

Almost surely, 2^73772123 is an apocalyptic number.

73772123 is a deficient number, since it is larger than the sum of its proper divisors (1).

73772123 is an equidigital number, since it uses as much as digits as its factorization.

73772123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12348, while the sum is 32.

The square root of 73772123 is about 8589.0699729365. The cubic root of 73772123 is about 419.4022543760.

The spelling of 73772123 in words is "seventy-three million, seven hundred seventy-two thousand, one hundred twenty-three".