73901749 has 2 divisors, whose sum is σ = 73901750. Its totient is φ = 73901748.

The previous prime is 73901747. The next prime is 73901753. The reversal of 73901749 is 94710937.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 61121124 + 12780625 = 7818^2 + 3575^2 .

It is a cyclic number.

It is not a de Polignac number, because 73901749 - 2¹ = 73901747 is a prime.

It is a super-2 number, since 2×73901749² = 10922937010518002, which contains 22 as substring.

Together with 73901747, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73901747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36950874 + 36950875.

It is an arithmetic number, because the mean of its divisors is an integer number (36950875).

Almost surely, 2^73901749 is an apocalyptic number.

It is an amenable number.

73901749 is a deficient number, since it is larger than the sum of its proper divisors (1).

73901749 is an equidigital number, since it uses as much as digits as its factorization.

73901749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 73901749 is about 8596.6126468511. The cubic root of 73901749 is about 419.6477564409.

It can be divided in two parts, 7390174 and 9, that multiplied together give a palindrome (66511566).

The spelling of 73901749 in words is "seventy-three million, nine hundred one thousand, seven hundred forty-nine".