84649788 has 36 divisors (see below), whose sum is σ = 225239560. Its totient is φ = 26731296.

The previous prime is 84649787. The next prime is 84649793. The reversal of 84649788 is 88794648.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84649787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61195 + ... + 62562.

Almost surely, 2^84649788 is an apocalyptic number.

It is an amenable number.

84649788 is an abundant number, since it is smaller than the sum of its proper divisors (140589772).

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

84649788 is a wasteful number, since it uses less digits than its factorization.

84649788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123786 (or 123781 counting only the distinct ones).

The product of its digits is 3096576, while the sum is 54.

The square root of 84649788 is about 9200.5319411434. The cubic root of 84649788 is about 439.0782840279.

The spelling of 84649788 in words is "eighty-four million, six hundred forty-nine thousand, seven hundred eighty-eight".