88499421 has 12 divisors (see below), whose sum is σ = 128118172. Its totient is φ = 58867776.

The previous prime is 88499419. The next prime is 88499431. The reversal of 88499421 is 12499488.

It can be written as a sum of positive squares in 2 ways, for example, as 55666521 + 32832900 = 7461^2 + 5730^2 .

It is not a de Polignac number, because 88499421 - 2¹ = 88499419 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 (88499401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6646 + ... + 14871.

Almost surely, 2^88499421 is an apocalyptic number.

It is an amenable number.

88499421 is a deficient number, since it is larger than the sum of its proper divisors (39618751).

88499421 is a wasteful number, since it uses less digits than its factorization.

88499421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21980 (or 21977 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 88499421 is about 9407.4130875603. The cubic root of 88499421 is about 445.6358725030.

The spelling of 88499421 in words is "eighty-eight million, four hundred ninety-nine thousand, four hundred twenty-one".