71773252 has 12 divisors (see below), whose sum is σ = 132991740. Its totient is φ = 33775616.

The previous prime is 71773243. The next prime is 71773253. The reversal of 71773252 is 25237717.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53231616 + 18541636 = 7296^2 + 4306^2 .

It is a super-3 number, since 3×71773252³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (71773253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527677 + ... + 527812.

It is an arithmetic number, because the mean of its divisors is an integer number (11082645).

Almost surely, 2^71773252 is an apocalyptic number.

It is an amenable number.

71773252 is a deficient number, since it is larger than the sum of its proper divisors (61218488).

71773252 is a wasteful number, since it uses less digits than its factorization.

71773252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055510 (or 1055508 counting only the distinct ones).

The product of its digits is 20580, while the sum is 34.

The square root of 71773252 is about 8471.9095840312. The cubic root of 71773252 is about 415.5795879077.

The spelling of 71773252 in words is "seventy-one million, seven hundred seventy-three thousand, two hundred fifty-two".