76506473 has 2 divisors, whose sum is σ = 76506474. Its totient is φ = 76506472.

The previous prime is 76506449. The next prime is 76506517. The reversal of 76506473 is 37460567.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70090384 + 6416089 = 8372^2 + 2533^2 .

It is an emirp because it is prime and its reverse (37460567) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76506473 - 2¹⁰ = 76505449 is a prime.

It is not a weakly prime, because it can be changed into another prime (76506433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38253236 + 38253237.

It is an arithmetic number, because the mean of its divisors is an integer number (38253237).

Almost surely, 2^76506473 is an apocalyptic number.

It is an amenable number.

76506473 is a deficient number, since it is larger than the sum of its proper divisors (1).

76506473 is an equidigital number, since it uses as much as digits as its factorization.

76506473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 38.

The square root of 76506473 is about 8746.7978712212. The cubic root of 76506473 is about 424.5212102963.

The spelling of 76506473 in words is "seventy-six million, five hundred six thousand, four hundred seventy-three".