80953837 has 2 divisors, whose sum is σ = 80953838. Its totient is φ = 80953836.

The previous prime is 80953811. The next prime is 80953853. The reversal of 80953837 is 73835908.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70879561 + 10074276 = 8419^2 + 3174^2 .

It is a cyclic number.

It is not a de Polignac number, because 80953837 - 2⁷ = 80953709 is a prime.

It is a super-3 number, since 3×80953837³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 80953793 and 80953802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80953867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40476918 + 40476919.

It is an arithmetic number, because the mean of its divisors is an integer number (40476919).

Almost surely, 2^80953837 is an apocalyptic number.

It is an amenable number.

80953837 is a deficient number, since it is larger than the sum of its proper divisors (1).

80953837 is an equidigital number, since it uses as much as digits as its factorization.

80953837 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 80953837 is about 8997.4350233831. The cubic root of 80953837 is about 432.5926597108.

The spelling of 80953837 in words is "eighty million, nine hundred fifty-three thousand, eight hundred thirty-seven".