90872743 has 8 divisors (see below), whose sum is σ = 97943888. Its totient is φ = 83813184.

The previous prime is 90872741. The next prime is 90872767. The reversal of 90872743 is 34727809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 90872743 - 2¹ = 90872741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 90872696 and 90872705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90872741) 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, 20371 + ... + 24427.

It is an arithmetic number, because the mean of its divisors is an integer number (12242986).

Almost surely, 2^90872743 is an apocalyptic number.

90872743 is a deficient number, since it is larger than the sum of its proper divisors (7071145).

90872743 is a wasteful number, since it uses less digits than its factorization.

90872743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793.

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 90872743 is about 9532.7196014569. The cubic root of 90872743 is about 449.5843783885.

The spelling of 90872743 in words is "ninety million, eight hundred seventy-two thousand, seven hundred forty-three".