88990445 has 8 divisors (see below), whose sum is σ = 108803736. Its totient is φ = 69848896.

The previous prime is 88990409. The next prime is 88990457. The reversal of 88990445 is 54409988.

It can be written as a sum of positive squares in 4 ways, for example, as 7214596 + 81775849 = 2686^2 + 9043^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 88990445 - 2²² = 84796141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 88990445.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167642 + ... + 168171.

It is an arithmetic number, because the mean of its divisors is an integer number (13600467).

Almost surely, 2^88990445 is an apocalyptic number.

It is an amenable number.

88990445 is a deficient number, since it is larger than the sum of its proper divisors (19813291).

88990445 is a wasteful number, since it uses less digits than its factorization.

88990445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335871.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 88990445 is about 9433.4747044766. The cubic root of 88990445 is about 446.4585312191.

It can be divided in two parts, 88990 and 445, that multiplied together give a triangular number (39600550 = T₈₈₉₉).

The spelling of 88990445 in words is "eighty-eight million, nine hundred ninety thousand, four hundred forty-five".