80297747 has 4 divisors (see below), whose sum is σ = 80432400. Its totient is φ = 80163096.

The previous prime is 80297731. The next prime is 80297753. The reversal of 80297747 is 74779208.

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 80297747 - 2⁴ = 80297731 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80297698 and 80297707.

It is not an unprimeable number, because it can be changed into a prime (80297797) 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, 66428 + ... + 67625.

It is an arithmetic number, because the mean of its divisors is an integer number (20108100).

Almost surely, 2^80297747 is an apocalyptic number.

80297747 is a deficient number, since it is larger than the sum of its proper divisors (134653).

80297747 is a wasteful number, since it uses less digits than its factorization.

80297747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134652.

The product of its (nonzero) digits is 197568, while the sum is 44.

The square root of 80297747 is about 8960.9010149650. The cubic root of 80297747 is about 431.4208399092.

The spelling of 80297747 in words is "eighty million, two hundred ninety-seven thousand, seven hundred forty-seven".