77213603 has 2 divisors, whose sum is σ = 77213604. Its totient is φ = 77213602.

The previous prime is 77213597. The next prime is 77213623. The reversal of 77213603 is 30631277.

It is a weak prime.

It is an emirp because it is prime and its reverse (30631277) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77213603 - 2⁸ = 77213347 is a prime.

It is not a weakly prime, because it can be changed into another prime (77213623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38606801 + 38606802.

It is an arithmetic number, because the mean of its divisors is an integer number (38606802).

Almost surely, 2^77213603 is an apocalyptic number.

77213603 is a deficient number, since it is larger than the sum of its proper divisors (1).

77213603 is an equidigital number, since it uses as much as digits as its factorization.

77213603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292, while the sum is 29.

The square root of 77213603 is about 8787.1271186890. The cubic root of 77213603 is about 425.8251153838.

The spelling of 77213603 in words is "seventy-seven million, two hundred thirteen thousand, six hundred three".