73400953 has 2 divisors, whose sum is σ = 73400954. Its totient is φ = 73400952.

The previous prime is 73400939. The next prime is 73400969. The reversal of 73400953 is 35900437.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71690089 + 1710864 = 8467^2 + 1308^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73400953 is a prime.

It is not a weakly prime, because it can be changed into another prime (73400923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36700476 + 36700477.

It is an arithmetic number, because the mean of its divisors is an integer number (36700477).

Almost surely, 2^73400953 is an apocalyptic number.

It is an amenable number.

73400953 is a deficient number, since it is larger than the sum of its proper divisors (1).

73400953 is an equidigital number, since it uses as much as digits as its factorization.

73400953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 31.

The square root of 73400953 is about 8567.4356139979. The cubic root of 73400953 is about 418.6976913052.

The spelling of 73400953 in words is "seventy-three million, four hundred thousand, nine hundred fifty-three".