84307642 has 8 divisors (see below), whose sum is σ = 126616500. Its totient is φ = 42102144.

The previous prime is 84307633. The next prime is 84307651. The reversal of 84307642 is 24670348.

It is an interprime number because it is at equal distance from previous prime (84307633) and next prime (84307651).

It can be written as a sum of positive squares in 2 ways, for example, as 83010321 + 1297321 = 9111^2 + 1139^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 84307598 and 84307607.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23767 + ... + 27082.

Almost surely, 2^84307642 is an apocalyptic number.

84307642 is a deficient number, since it is larger than the sum of its proper divisors (42308858).

84307642 is a wasteful number, since it uses less digits than its factorization.

84307642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51680.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 84307642 is about 9181.9192982731. The cubic root of 84307642 is about 438.4859150009.

The spelling of 84307642 in words is "eighty-four million, three hundred seven thousand, six hundred forty-two".