84615764 has 6 divisors (see below), whose sum is σ = 148077594. Its totient is φ = 42307880.

The previous prime is 84615743. The next prime is 84615767. The reversal of 84615764 is 46751648.

It can be written as a sum of positive squares in only one way, i.e., 60684100 + 23931664 = 7790^2 + 4892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84615767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10576967 + ... + 10576974.

It is an arithmetic number, because the mean of its divisors is an integer number (24679599).

Almost surely, 2^84615764 is an apocalyptic number.

It is an amenable number.

84615764 is a deficient number, since it is larger than the sum of its proper divisors (63461830).

84615764 is a wasteful number, since it uses less digits than its factorization.

84615764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21153945 (or 21153943 counting only the distinct ones).

The product of its digits is 161280, while the sum is 41.

The square root of 84615764 is about 9198.6827317829. The cubic root of 84615764 is about 439.0194486708.

The spelling of 84615764 in words is "eighty-four million, six hundred fifteen thousand, seven hundred sixty-four".