263097980 has 24 divisors (see below), whose sum is σ = 555565920. Its totient is φ = 104656320.

The previous prime is 263097977. The next prime is 263097983. The reversal of 263097980 is 89790362.

It is an interprime number because it is at equal distance from previous prime (263097977) and next prime (263097983).

It is a super-3 number, since 3×263097980³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263097983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32720 + ... + 39959.

It is an arithmetic number, because the mean of its divisors is an integer number (23148580).

Almost surely, 2^263097980 is an apocalyptic number.

263097980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

263097980 is an abundant number, since it is smaller than the sum of its proper divisors (292467940).

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

263097980 is a wasteful number, since it uses less digits than its factorization.

263097980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72869 (or 72867 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 263097980 is about 16220.2953117383. The cubic root of 263097980 is about 640.7754110597.

The spelling of 263097980 in words is "two hundred sixty-three million, ninety-seven thousand, nine hundred eighty".