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5457823 = 78832
BaseRepresentation
bin10100110100011110011111
3101021021201121
4110310132133
52344122243
6312551411
764251010
oct24643637
911237647
105457823
1130985a8
1219b2567
1311912a7
14a21007
1572c1ed
hex53479f

5457823 has 6 divisors (see below), whose sum is σ = 6244584. Its totient is φ = 4672836.

The previous prime is 5457821. The next prime is 5457839. The reversal of 5457823 is 3287545.

It is a happy number.

It is not a de Polignac number, because 5457823 - 21 = 5457821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5457821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5740 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (1040764).

Almost surely, 25457823 is an apocalyptic number.

5457823 is a deficient number, since it is larger than the sum of its proper divisors (786761).

5457823 is an frugal number, since it uses more digits than its factorization.

5457823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773 (or 890 counting only the distinct ones).

The product of its digits is 33600, while the sum is 34.

The square root of 5457823 is about 2336.1984076700. The cubic root of 5457823 is about 176.0650478396.

The spelling of 5457823 in words is "five million, four hundred fifty-seven thousand, eight hundred twenty-three".

Divisors: 1 7 883 6181 779689 5457823