84749072 has 10 divisors (see below), whose sum is σ = 164201358. Its totient is φ = 42374528.

The previous prime is 84749057. The next prime is 84749081. The reversal of 84749072 is 27094748.

It can be written as a sum of positive squares in only one way, i.e., 48219136 + 36529936 = 6944^2 + 6044^2 .

It is a super-2 number, since 2×84749072² = 14364810409722368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2648393 + ... + 2648424.

Almost surely, 2^84749072 is an apocalyptic number.

It is an amenable number.

84749072 is a deficient number, since it is larger than the sum of its proper divisors (79452286).

84749072 is a wasteful number, since it uses less digits than its factorization.

84749072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5296825 (or 5296819 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 84749072 is about 9205.9259175816. The cubic root of 84749072 is about 439.2498789296.

The spelling of 84749072 in words is "eighty-four million, seven hundred forty-nine thousand, seventy-two".