84451516 has 6 divisors (see below), whose sum is σ = 147790160. Its totient is φ = 42225756.

The previous prime is 84451481. The next prime is 84451517. The reversal of 84451516 is 61515448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84451517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10556436 + ... + 10556443.

Almost surely, 2^84451516 is an apocalyptic number.

It is an amenable number.

84451516 is a deficient number, since it is larger than the sum of its proper divisors (63338644).

84451516 is a wasteful number, since it uses less digits than its factorization.

84451516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112883 (or 21112881 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The square root of 84451516 is about 9189.7505950923. The cubic root of 84451516 is about 438.7352038690.

The spelling of 84451516 in words is "eighty-four million, four hundred fifty-one thousand, five hundred sixteen".