73745953 has 2 divisors, whose sum is σ = 73745954. Its totient is φ = 73745952.

The previous prime is 73745951. The next prime is 73745963. The reversal of 73745953 is 35954737.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57881664 + 15864289 = 7608^2 + 3983^2 .

It is a cyclic number.

It is not a de Polignac number, because 73745953 - 2¹ = 73745951 is a prime.

Together with 73745951, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73745951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36872976 + 36872977.

It is an arithmetic number, because the mean of its divisors is an integer number (36872977).

Almost surely, 2^73745953 is an apocalyptic number.

It is an amenable number.

73745953 is a deficient number, since it is larger than the sum of its proper divisors (1).

73745953 is an equidigital number, since it uses as much as digits as its factorization.

73745953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 396900, while the sum is 43.

The square root of 73745953 is about 8587.5463899766. The cubic root of 73745953 is about 419.3526554460.

The spelling of 73745953 in words is "seventy-three million, seven hundred forty-five thousand, nine hundred fifty-three".