89138735 has 32 divisors (see below), whose sum is σ = 132969600. Its totient is φ = 55959552.

The previous prime is 89138729. The next prime is 89138741. The reversal of 89138735 is 53783198.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (89138729) and next prime (89138741).

It is a cyclic number.

It is not a de Polignac number, because 89138735 - 2⁴ = 89138719 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19991 + ... + 24039.

It is an arithmetic number, because the mean of its divisors is an integer number (4155300).

Almost surely, 2^89138735 is an apocalyptic number.

89138735 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

89138735 is a deficient number, since it is larger than the sum of its proper divisors (43830865).

89138735 is a wasteful number, since it uses less digits than its factorization.

89138735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115.

The product of its digits is 181440, while the sum is 44.

The square root of 89138735 is about 9441.3312091039. The cubic root of 89138735 is about 446.7063802837.

The spelling of 89138735 in words is "eighty-nine million, one hundred thirty-eight thousand, seven hundred thirty-five".