88263781 has 2 divisors, whose sum is σ = 88263782. Its totient is φ = 88263780.

The previous prime is 88263761. The next prime is 88263787. The reversal of 88263781 is 18736288.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88190881 + 72900 = 9391^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 88263781 - 2⁷ = 88263653 is a prime.

It is a super-2 number, since 2×88263781² = 15580990072831922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (88263787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44131890 + 44131891.

It is an arithmetic number, because the mean of its divisors is an integer number (44131891).

Almost surely, 2^88263781 is an apocalyptic number.

It is an amenable number.

88263781 is a deficient number, since it is larger than the sum of its proper divisors (1).

88263781 is an equidigital number, since it uses as much as digits as its factorization.

88263781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 88263781 is about 9394.8805740148. The cubic root of 88263781 is about 445.2400018331.

The spelling of 88263781 in words is "eighty-eight million, two hundred sixty-three thousand, seven hundred eighty-one".