90457801 has 4 divisors (see below), whose sum is σ = 103380352. Its totient is φ = 77535252.

The previous prime is 90457789. The next prime is 90457811. The reversal of 90457801 is 10875409.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10875409 = 683 ⋅15923.

It is a cyclic number.

It is not a de Polignac number, because 90457801 - 2⁵ = 90457769 is a prime.

It is a super-2 number, since 2×90457801² = 16365227523511202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90457811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6461265 + ... + 6461278.

It is an arithmetic number, because the mean of its divisors is an integer number (25845088).

Almost surely, 2^90457801 is an apocalyptic number.

It is an amenable number.

90457801 is a deficient number, since it is larger than the sum of its proper divisors (12922551).

90457801 is a wasteful number, since it uses less digits than its factorization.

90457801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922550.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 90457801 is about 9510.9306064128. The cubic root of 90457801 is about 448.8990386470.

The spelling of 90457801 in words is "ninety million, four hundred fifty-seven thousand, eight hundred one".