84615668 has 6 divisors (see below), whose sum is σ = 148077426. Its totient is φ = 42307832.

The previous prime is 84615659. The next prime is 84615673. The reversal of 84615668 is 86651648.

It can be written as a sum of positive squares in only one way, i.e., 81036004 + 3579664 = 9002^2 + 1892^2 .

It is a super-2 number, since 2×84615668² = 14319622542172448, 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, 10576955 + ... + 10576962.

It is an arithmetic number, because the mean of its divisors is an integer number (24679571).

Almost surely, 2^84615668 is an apocalyptic number.

It is an amenable number.

84615668 is a deficient number, since it is larger than the sum of its proper divisors (63461758).

84615668 is a wasteful number, since it uses less digits than its factorization.

84615668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21153921 (or 21153919 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 84615668 is about 9198.6775136429. The cubic root of 84615668 is about 439.0192826423.

The spelling of 84615668 in words is "eighty-four million, six hundred fifteen thousand, six hundred sixty-eight".