90057869 has 8 divisors (see below), whose sum is σ = 98872608. Its totient is φ = 81347760.

The previous prime is 90057841. The next prime is 90057893. The reversal of 90057869 is 96875009.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90057869 is a prime.

It is a super-2 number, since 2×90057869² = 16220839537642322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90057809) 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, 24347 + ... + 27800.

It is an arithmetic number, because the mean of its divisors is an integer number (12359076).

Almost surely, 2^90057869 is an apocalyptic number.

It is an amenable number.

90057869 is a deficient number, since it is larger than the sum of its proper divisors (8814739).

90057869 is a wasteful number, since it uses less digits than its factorization.

90057869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52315.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 90057869 is about 9489.8824544880. The cubic root of 90057869 is about 448.2365038587.

The spelling of 90057869 in words is "ninety million, fifty-seven thousand, eight hundred sixty-nine".