88278621 has 8 divisors (see below), whose sum is σ = 117889344. Its totient is φ = 58760160.

The previous prime is 88278611. The next prime is 88278647. The reversal of 88278621 is 12687288.

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

It is not a de Polignac number, because 88278621 - 2⁶ = 88278557 is a prime.

It is a super-2 number, since 2×88278621² = 15586229851323282, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (88278611) 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, 20800 + ... + 24681.

It is an arithmetic number, because the mean of its divisors is an integer number (14736168).

Almost surely, 2^88278621 is an apocalyptic number.

It is an amenable number.

88278621 is a deficient number, since it is larger than the sum of its proper divisors (29610723).

88278621 is a wasteful number, since it uses less digits than its factorization.

88278621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46131.

The product of its digits is 86016, while the sum is 42.

The square root of 88278621 is about 9395.6703326585. The cubic root of 88278621 is about 445.2649535225.

The spelling of 88278621 in words is "eighty-eight million, two hundred seventy-eight thousand, six hundred twenty-one".