83709412 has 6 divisors (see below), whose sum is σ = 146491478. Its totient is φ = 41854704.

The previous prime is 83709407. The next prime is 83709463. The reversal of 83709412 is 21490738.

It can be written as a sum of positive squares in only one way, i.e., 82737216 + 972196 = 9096^2 + 986^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10463673 + ... + 10463680.

Almost surely, 2^83709412 is an apocalyptic number.

It is an amenable number.

83709412 is a deficient number, since it is larger than the sum of its proper divisors (62782066).

83709412 is a wasteful number, since it uses less digits than its factorization.

83709412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20927357 (or 20927355 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 83709412 is about 9149.2847807902. The cubic root of 83709412 is about 437.4463163518.

The spelling of 83709412 in words is "eighty-three million, seven hundred nine thousand, four hundred twelve".