84288404 has 6 divisors (see below), whose sum is σ = 147504714. Its totient is φ = 42144200.

The previous prime is 84288401. The next prime is 84288443. The reversal of 84288404 is 40488248.

It can be written as a sum of positive squares in only one way, i.e., 52591504 + 31696900 = 7252^2 + 5630^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84288401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10536047 + ... + 10536054.

It is an arithmetic number, because the mean of its divisors is an integer number (24584119).

Almost surely, 2^84288404 is an apocalyptic number.

It is an amenable number.

84288404 is a deficient number, since it is larger than the sum of its proper divisors (63216310).

84288404 is a wasteful number, since it uses less digits than its factorization.

84288404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21072105 (or 21072103 counting only the distinct ones).

The product of its (nonzero) digits is 65536, while the sum is 38.

The square root of 84288404 is about 9180.8716361792. The cubic root of 84288404 is about 438.4525600422.

The spelling of 84288404 in words is "eighty-four million, two hundred eighty-eight thousand, four hundred four".