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88869997 = 471890851
BaseRepresentation
bin1010100110000…
…00110001101101
320012020001201101
411103000301231
5140222314442
612452443101
72126245126
oct523006155
9205201641
1088869997
114618a387
1225919491
13155477c8
14bb3504d
157c06cb7
hex54c0c6d

88869997 has 4 divisors (see below), whose sum is σ = 90760896. Its totient is φ = 86979100.

The previous prime is 88869983. The next prime is 88870003. The reversal of 88869997 is 79996888.

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.

It is a cyclic number.

It is not a de Polignac number, because 88869997 - 223 = 80481389 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 (88869917) 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, 945379 + ... + 945472.

It is an arithmetic number, because the mean of its divisors is an integer number (22690224).

Almost surely, 288869997 is an apocalyptic number.

It is an amenable number.

88869997 is a deficient number, since it is larger than the sum of its proper divisors (1890899).

88869997 is a wasteful number, since it uses less digits than its factorization.

88869997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890898.

The product of its digits is 15676416, while the sum is 64.

The square root of 88869997 is about 9427.0884688752. The cubic root of 88869997 is about 446.2570140157.

The spelling of 88869997 in words is "eighty-eight million, eight hundred sixty-nine thousand, nine hundred ninety-seven".

Divisors: 1 47 1890851 88869997