88020001 has 4 divisors (see below), whose sum is σ = 88042752. Its totient is φ = 87997252.

The previous prime is 88019993. The next prime is 88020013. The reversal of 88020001 is 10002088.

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.

It is a cyclic number.

It is not a de Polignac number, because 88020001 - 2³ = 88019993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88020041) 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, 3961 + ... + 13846.

It is an arithmetic number, because the mean of its divisors is an integer number (22010688).

Almost surely, 2^88020001 is an apocalyptic number.

It is an amenable number.

88020001 is a deficient number, since it is larger than the sum of its proper divisors (22751).

88020001 is a wasteful number, since it uses less digits than its factorization.

88020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22750.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 88020001 is about 9381.8975159613. The cubic root of 88020001 is about 444.8297139140.

Adding to 88020001 its reverse (10002088), we get a palindrome (98022089).

The spelling of 88020001 in words is "eighty-eight million, twenty thousand, one".