73400357 has 2 divisors, whose sum is σ = 73400358. Its totient is φ = 73400356.

The previous prime is 73400333. The next prime is 73400377. The reversal of 73400357 is 75300437.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73170916 + 229441 = 8554^2 + 479^2 .

It is an emirp because it is prime and its reverse (75300437) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73400357 - 2⁶ = 73400293 is a prime.

It is a super-2 number, since 2×73400357² = 10775224815454898, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73400377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36700178 + 36700179.

It is an arithmetic number, because the mean of its divisors is an integer number (36700179).

Almost surely, 2^73400357 is an apocalyptic number.

It is an amenable number.

73400357 is a deficient number, since it is larger than the sum of its proper divisors (1).

73400357 is an equidigital number, since it uses as much as digits as its factorization.

73400357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 29.

The square root of 73400357 is about 8567.4008310572. The cubic root of 73400357 is about 418.6965580570.

The spelling of 73400357 in words is "seventy-three million, four hundred thousand, three hundred fifty-seven".