77622361 has 4 divisors (see below), whose sum is σ = 77680512. Its totient is φ = 77564212.

The previous prime is 77622359. The next prime is 77622367. The reversal of 77622361 is 16322677.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77622361 - 2¹ = 77622359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77622367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27025 + ... + 29758.

It is an arithmetic number, because the mean of its divisors is an integer number (19420128).

Almost surely, 2^77622361 is an apocalyptic number.

It is an amenable number.

77622361 is a deficient number, since it is larger than the sum of its proper divisors (58151).

77622361 is a wasteful number, since it uses less digits than its factorization.

77622361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58150.

The product of its digits is 21168, while the sum is 34.

The square root of 77622361 is about 8810.3553276812. The cubic root of 77622361 is about 426.5752128070.

The spelling of 77622361 in words is "seventy-seven million, six hundred twenty-two thousand, three hundred sixty-one".