80201377 has 4 divisors (see below), whose sum is σ = 81300100. Its totient is φ = 79102656.

The previous prime is 80201339. The next prime is 80201399. The reversal of 80201377 is 77310208.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40246336 + 39955041 = 6344^2 + 6321^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80201377 is a prime.

It is a super-2 number, since 2×80201377² = 12864521745392258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80201477) 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 3 ways as a sum of consecutive naturals, for example, 549252 + ... + 549397.

It is an arithmetic number, because the mean of its divisors is an integer number (20325025).

Almost surely, 2^80201377 is an apocalyptic number.

It is an amenable number.

80201377 is a deficient number, since it is larger than the sum of its proper divisors (1098723).

80201377 is a wasteful number, since it uses less digits than its factorization.

80201377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098722.

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 80201377 is about 8955.5221511646. The cubic root of 80201377 is about 431.2481797305.

The spelling of 80201377 in words is "eighty million, two hundred one thousand, three hundred seventy-seven".