84030356 has 6 divisors (see below), whose sum is σ = 147053130. Its totient is φ = 42015176.

The previous prime is 84030347. The next prime is 84030377. The reversal of 84030356 is 65303048.

It can be written as a sum of positive squares in only one way, i.e., 81360400 + 2669956 = 9020^2 + 1634^2 .

It is a super-2 number, since 2×84030356² = 14122201458973472, 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 as a sum of consecutive naturals, namely, 10503791 + ... + 10503798.

It is an arithmetic number, because the mean of its divisors is an integer number (24508855).

Almost surely, 2^84030356 is an apocalyptic number.

It is an amenable number.

84030356 is a deficient number, since it is larger than the sum of its proper divisors (63022774).

84030356 is a wasteful number, since it uses less digits than its factorization.

84030356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21007593 (or 21007591 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 84030356 is about 9166.8072958910. The cubic root of 84030356 is about 438.0046634617.

The spelling of 84030356 in words is "eighty-four million, thirty thousand, three hundred fifty-six".