83421300 has 36 divisors (see below), whose sum is σ = 241366496. Its totient is φ = 22245600.

The previous prime is 83421293. The next prime is 83421319. The reversal of 83421300 is 312438.

It is a happy number.

It is a super-2 number, since 2×83421300² = 13918226587380000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138736 + ... + 139335.

Almost surely, 2^83421300 is an apocalyptic number.

It is an amenable number.

83421300 is an abundant number, since it is smaller than the sum of its proper divisors (157945196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83421300 is a wasteful number, since it uses less digits than its factorization.

83421300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278088 (or 278081 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 83421300 is about 9133.5261536824. The cubic root of 83421300 is about 436.9438702439.

Adding to 83421300 its reverse (312438), we get a palindrome (83733738).

The spelling of 83421300 in words is "eighty-three million, four hundred twenty-one thousand, three hundred".