77226407 has 4 divisors (see below), whose sum is σ = 77336040. Its totient is φ = 77116776.

The previous prime is 77226377. The next prime is 77226419. The reversal of 77226407 is 70462277.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 77226407 - 2²⁶ = 10117543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77226467) 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 in 3 ways as a sum of consecutive naturals, for example, 53753 + ... + 55170.

It is an arithmetic number, because the mean of its divisors is an integer number (19334010).

Almost surely, 2^77226407 is an apocalyptic number.

77226407 is a deficient number, since it is larger than the sum of its proper divisors (109633).

77226407 is a wasteful number, since it uses less digits than its factorization.

77226407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109632.

The product of its (nonzero) digits is 32928, while the sum is 35.

The square root of 77226407 is about 8787.8556542538. The cubic root of 77226407 is about 425.8486516660.

The spelling of 77226407 in words is "seventy-seven million, two hundred twenty-six thousand, four hundred seven".