80429537 has 4 divisors (see below), whose sum is σ = 81748116. Its totient is φ = 79110960.

The previous prime is 80429519. The next prime is 80429539. The reversal of 80429537 is 73592408.

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 4669921 + 75759616 = 2161^2 + 8704^2 .

It is a cyclic number.

It is not a de Polignac number, because 80429537 - 2⁶ = 80429473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80429537.

It is not an unprimeable number, because it can be changed into a prime (80429539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659198 + ... + 659319.

It is an arithmetic number, because the mean of its divisors is an integer number (20437029).

Almost surely, 2^80429537 is an apocalyptic number.

It is an amenable number.

80429537 is a deficient number, since it is larger than the sum of its proper divisors (1318579).

80429537 is a wasteful number, since it uses less digits than its factorization.

80429537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318578.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 80429537 is about 8968.2516133302. The cubic root of 80429537 is about 431.6567364200.

The spelling of 80429537 in words is "eighty million, four hundred twenty-nine thousand, five hundred thirty-seven".