73970515 has 16 divisors (see below), whose sum is σ = 94187520. Its totient is φ = 55611360.

The previous prime is 73970509. The next prime is 73970539. The reversal of 73970515 is 51507937.

It is a happy number.

It is not a de Polignac number, because 73970515 - 2¹³ = 73962323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9000 + ... + 15130.

It is an arithmetic number, because the mean of its divisors is an integer number (5886720).

Almost surely, 2^73970515 is an apocalyptic number.

73970515 is a deficient number, since it is larger than the sum of its proper divisors (20217005).

73970515 is a wasteful number, since it uses less digits than its factorization.

73970515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282.

The product of its (nonzero) digits is 33075, while the sum is 37.

The square root of 73970515 is about 8600.6113154822. The cubic root of 73970515 is about 419.7778776354. Note that the first 3 decimals are identical.

The spelling of 73970515 in words is "seventy-three million, nine hundred seventy thousand, five hundred fifteen".