80356690 has 16 divisors (see below), whose sum is σ = 144960192. Its totient is φ = 32071984.

The previous prime is 80356669. The next prime is 80356693. The reversal of 80356690 is 9665308.

It is a super-2 number, since 2×80356690² = 12914395255512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80356693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3934 + ... + 13273.

It is an arithmetic number, because the mean of its divisors is an integer number (9060012).

Almost surely, 2^80356690 is an apocalyptic number.

80356690 is a deficient number, since it is larger than the sum of its proper divisors (64603502).

80356690 is a wasteful number, since it uses less digits than its factorization.

80356690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17681.

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

The square root of 80356690 is about 8964.1893108078. The cubic root of 80356690 is about 431.5263763653.

The spelling of 80356690 in words is "eighty million, three hundred fifty-six thousand, six hundred ninety".