76223745 has 48 divisors (see below), whose sum is σ = 147223440. Its totient is φ = 36223488.

The previous prime is 76223731. The next prime is 76223759. The reversal of 76223745 is 54732267.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (76223731) and next prime (76223759).

It can be written as a sum of positive squares in 8 ways, for example, as 898704 + 75325041 = 948^2 + 8679^2 .

It is not a de Polignac number, because 76223745 - 2⁴ = 76223729 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14719 + ... + 19211.

It is an arithmetic number, because the mean of its divisors is an integer number (3067155).

Almost surely, 2^76223745 is an apocalyptic number.

It is an amenable number.

76223745 is a deficient number, since it is larger than the sum of its proper divisors (70999695).

76223745 is a wasteful number, since it uses less digits than its factorization.

76223745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4546 (or 4543 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 76223745 is about 8730.6211119255. The cubic root of 76223745 is about 423.9976285171.

The spelling of 76223745 in words is "seventy-six million, two hundred twenty-three thousand, seven hundred forty-five".