83403812 has 6 divisors (see below), whose sum is σ = 145956678. Its totient is φ = 41701904.

The previous prime is 83403791. The next prime is 83403833. The reversal of 83403812 is 21830438.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (83403791) and next prime (83403833).

It can be written as a sum of positive squares in only one way, i.e., 48664576 + 34739236 = 6976^2 + 5894^2 .

It is a super-2 number, since 2×83403812² = 13912391712262688, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10425473 + ... + 10425480.

It is an arithmetic number, because the mean of its divisors is an integer number (24326113).

Almost surely, 2^83403812 is an apocalyptic number.

It is an amenable number.

83403812 is a deficient number, since it is larger than the sum of its proper divisors (62552866).

83403812 is a wasteful number, since it uses less digits than its factorization.

83403812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20850957 (or 20850955 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 83403812 is about 9132.5687514521. The cubic root of 83403812 is about 436.9133352429.

The spelling of 83403812 in words is "eighty-three million, four hundred three thousand, eight hundred twelve".