73756261 has 2 divisors, whose sum is σ = 73756262. Its totient is φ = 73756260.

The previous prime is 73756247. The next prime is 73756273. The reversal of 73756261 is 16265737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72352036 + 1404225 = 8506^2 + 1185^2 .

It is a cyclic number.

It is not a de Polignac number, because 73756261 - 2²¹ = 71659109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73756261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73756201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36878130 + 36878131.

It is an arithmetic number, because the mean of its divisors is an integer number (36878131).

Almost surely, 2^73756261 is an apocalyptic number.

It is an amenable number.

73756261 is a deficient number, since it is larger than the sum of its proper divisors (1).

73756261 is an equidigital number, since it uses as much as digits as its factorization.

73756261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52920, while the sum is 37.

The square root of 73756261 is about 8588.1465404358. The cubic root of 73756261 is about 419.3721931770.

The spelling of 73756261 in words is "seventy-three million, seven hundred fifty-six thousand, two hundred sixty-one".