84740071 has 16 divisors (see below), whose sum is σ = 94127040. Its totient is φ = 75790080.

The previous prime is 84740069. The next prime is 84740077. The reversal of 84740071 is 17004748.

It is a cyclic number.

It is not a de Polignac number, because 84740071 - 2¹ = 84740069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84740077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91750 + ... + 92668.

It is an arithmetic number, because the mean of its divisors is an integer number (5882940).

Almost surely, 2^84740071 is an apocalyptic number.

84740071 is a deficient number, since it is larger than the sum of its proper divisors (9386969).

84740071 is a wasteful number, since it uses less digits than its factorization.

84740071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146.

The product of its (nonzero) digits is 6272, while the sum is 31.

The square root of 84740071 is about 9205.4370347094. The cubic root of 84740071 is about 439.2343278129.

The spelling of 84740071 in words is "eighty-four million, seven hundred forty thousand, seventy-one".