89540747 has 2 divisors, whose sum is σ = 89540748. Its totient is φ = 89540746.

The previous prime is 89540729. The next prime is 89540753. The reversal of 89540747 is 74704598.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89540747 - 2¹⁸ = 89278603 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 89540698 and 89540707.

It is not a weakly prime, because it can be changed into another prime (89510747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44770373 + 44770374.

It is an arithmetic number, because the mean of its divisors is an integer number (44770374).

Almost surely, 2^89540747 is an apocalyptic number.

89540747 is a deficient number, since it is larger than the sum of its proper divisors (1).

89540747 is an equidigital number, since it uses as much as digits as its factorization.

89540747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 44.

The square root of 89540747 is about 9462.5972650219. The cubic root of 89540747 is about 447.3769156823.

The spelling of 89540747 in words is "eighty-nine million, five hundred forty thousand, seven hundred forty-seven".