84919654 has 4 divisors (see below), whose sum is σ = 127379484. Its totient is φ = 42459826.

The previous prime is 84919649. The next prime is 84919669. The reversal of 84919654 is 45691948.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×84919654² = 14422695270959432, 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, 21229912 + ... + 21229915.

It is an arithmetic number, because the mean of its divisors is an integer number (31844871).

Almost surely, 2^84919654 is an apocalyptic number.

84919654 is a deficient number, since it is larger than the sum of its proper divisors (42459830).

84919654 is a wasteful number, since it uses less digits than its factorization.

84919654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42459829.

The product of its digits is 311040, while the sum is 46.

The square root of 84919654 is about 9215.1860534663. The cubic root of 84919654 is about 439.5443871987.

It can be divided in two parts, 8491 and 9654, that added together give a triangular number (18145 = T₁₉₀).

The spelling of 84919654 in words is "eighty-four million, nine hundred nineteen thousand, six hundred fifty-four".