76420493 has 2 divisors, whose sum is σ = 76420494. Its totient is φ = 76420492.

The previous prime is 76420453. The next prime is 76420499. The reversal of 76420493 is 39402467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65642404 + 10778089 = 8102^2 + 3283^2 .

It is a cyclic number.

It is not a de Polignac number, because 76420493 - 2¹⁴ = 76404109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76420499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38210246 + 38210247.

It is an arithmetic number, because the mean of its divisors is an integer number (38210247).

Almost surely, 2^76420493 is an apocalyptic number.

It is an amenable number.

76420493 is a deficient number, since it is larger than the sum of its proper divisors (1).

76420493 is an equidigital number, since it uses as much as digits as its factorization.

76420493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 76420493 is about 8741.8815480422. The cubic root of 76420493 is about 424.3621212932.

The spelling of 76420493 in words is "seventy-six million, four hundred twenty thousand, four hundred ninety-three".