76402273 has 2 divisors, whose sum is σ = 76402274. Its totient is φ = 76402272.

The previous prime is 76402237. The next prime is 76402303. The reversal of 76402273 is 37220467.

It is a happy number.

Together with previous prime (76402237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76247824 + 154449 = 8732^2 + 393^2 .

It is a cyclic number.

It is not a de Polignac number, because 76402273 - 2¹³ = 76394081 is a prime.

It is equal to p_4471681 and since 76402273 and 4471681 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (76402223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38201136 + 38201137.

It is an arithmetic number, because the mean of its divisors is an integer number (38201137).

Almost surely, 2^76402273 is an apocalyptic number.

It is an amenable number.

76402273 is a deficient number, since it is larger than the sum of its proper divisors (1).

76402273 is an equidigital number, since it uses as much as digits as its factorization.

76402273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 76402273 is about 8740.8393761698. The cubic root of 76402273 is about 424.3283934623.

The spelling of 76402273 in words is "seventy-six million, four hundred two thousand, two hundred seventy-three".