80957495 has 4 divisors (see below), whose sum is σ = 97149000. Its totient is φ = 64765992.

The previous prime is 80957413. The next prime is 80957497. The reversal of 80957495 is 59475908.

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

It is a cyclic number.

It is not a de Polignac number, because 80957495 - 2¹⁶ = 80891959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80957497) 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, 8095745 + ... + 8095754.

It is an arithmetic number, because the mean of its divisors is an integer number (24287250).

Almost surely, 2^80957495 is an apocalyptic number.

80957495 is a deficient number, since it is larger than the sum of its proper divisors (16191505).

80957495 is a wasteful number, since it uses less digits than its factorization.

80957495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16191504.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 80957495 is about 8997.6383012433. The cubic root of 80957495 is about 432.5991753588.

The spelling of 80957495 in words is "eighty million, nine hundred fifty-seven thousand, four hundred ninety-five".