69247980 has 48 divisors (see below), whose sum is σ = 215439840. Its totient is φ = 18465984.

The previous prime is 69247961. The next prime is 69248059. The reversal of 69247980 is 8974296.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63579 + ... + 64658.

It is an arithmetic number, because the mean of its divisors is an integer number (4488330).

Almost surely, 2^69247980 is an apocalyptic number.

69247980 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

69247980 is an abundant number, since it is smaller than the sum of its proper divisors (146191860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

69247980 is a wasteful number, since it uses less digits than its factorization.

69247980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128255 (or 128247 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 69247980 is about 8321.5371176244. The cubic root of 69247980 is about 410.6473612226.

The spelling of 69247980 in words is "sixty-nine million, two hundred forty-seven thousand, nine hundred eighty".