84070501 has 4 divisors (see below), whose sum is σ = 84841900. Its totient is φ = 83299104.

The previous prime is 84070499. The next prime is 84070583. The reversal of 84070501 is 10507048.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68062500 + 16008001 = 8250^2 + 4001^2 .

It is a cyclic number.

It is not a de Polignac number, because 84070501 - 2¹ = 84070499 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 (84070001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385536 + ... + 385753.

It is an arithmetic number, because the mean of its divisors is an integer number (21210475).

Almost surely, 2^84070501 is an apocalyptic number.

84070501 is the 4101-st centered decagonal number.

It is an amenable number.

84070501 is a deficient number, since it is larger than the sum of its proper divisors (771399).

84070501 is a wasteful number, since it uses less digits than its factorization.

84070501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771398.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 84070501 is about 9168.9967281050. The cubic root of 84070501 is about 438.0744037263.

Adding to 84070501 its reverse (10507048), we get a palindrome (94577549).

The spelling of 84070501 in words is "eighty-four million, seventy thousand, five hundred one".