80693650 has 12 divisors (see below), whose sum is σ = 150090282. Its totient is φ = 32277440.

The previous prime is 80693629. The next prime is 80693653. The reversal of 80693650 is 5639608.

It can be written as a sum of positive squares in 3 ways, for example, as 36324729 + 44368921 = 6027^2 + 6661^2 .

It is a super-2 number, since 2×80693650² = 13022930300645000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80693653) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 806887 + ... + 806986.

Almost surely, 2^80693650 is an apocalyptic number.

80693650 is a deficient number, since it is larger than the sum of its proper divisors (69396632).

80693650 is a wasteful number, since it uses less digits than its factorization.

80693650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613885 (or 1613880 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 80693650 is about 8982.9644327471. The cubic root of 80693650 is about 432.1287089341.

The spelling of 80693650 in words is "eighty million, six hundred ninety-three thousand, six hundred fifty".