80621119 has 2 divisors, whose sum is σ = 80621120. Its totient is φ = 80621118.

The previous prime is 80621071. The next prime is 80621143. The reversal of 80621119 is 91112608.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 80621119 - 2¹⁵ = 80588351 is a prime.

It is a super-2 number, since 2×80621119² = 12999529657624322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80621179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40310559 + 40310560.

It is an arithmetic number, because the mean of its divisors is an integer number (40310560).

Almost surely, 2^80621119 is an apocalyptic number.

80621119 is a deficient number, since it is larger than the sum of its proper divisors (1).

80621119 is an equidigital number, since it uses as much as digits as its factorization.

80621119 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 80621119 is about 8978.9263834826. The cubic root of 80621119 is about 431.9991980295. Note that the first 3 decimals are identical.

It can be divided in two parts, 8062111 and 9, that added together give a triangular number (8062120 = T₄₀₁₅).

The spelling of 80621119 in words is "eighty million, six hundred twenty-one thousand, one hundred nineteen".