77224701 has 16 divisors (see below), whose sum is σ = 104470848. Its totient is φ = 50736000.

The previous prime is 77224699. The next prime is 77224703. The reversal of 77224701 is 10742277.

It is an interprime number because it is at equal distance from previous prime (77224699) and next prime (77224703).

It is not a de Polignac number, because 77224701 - 2¹ = 77224699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77224703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84690 + ... + 85596.

It is an arithmetic number, because the mean of its divisors is an integer number (6529428).

Almost surely, 2^77224701 is an apocalyptic number.

It is an amenable number.

77224701 is a deficient number, since it is larger than the sum of its proper divisors (27246147).

77224701 is a wasteful number, since it uses less digits than its factorization.

77224701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 77224701 is about 8787.7585879449. The cubic root of 77224701 is about 425.8455158511.

Adding to 77224701 its reverse (10742277), we get a palindrome (87966978).

The spelling of 77224701 in words is "seventy-seven million, two hundred twenty-four thousand, seven hundred one".