90988461 has 8 divisors (see below), whose sum is σ = 134797760. Its totient is φ = 60658956.

The previous prime is 90988459. The next prime is 90988463. The reversal of 90988461 is 16488909.

It is an interprime number because it is at equal distance from previous prime (90988459) and next prime (90988463).

It is not a de Polignac number, because 90988461 - 2¹ = 90988459 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 (90988463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1684945 + ... + 1684998.

It is an arithmetic number, because the mean of its divisors is an integer number (16849720).

Almost surely, 2^90988461 is an apocalyptic number.

It is an amenable number.

90988461 is a deficient number, since it is larger than the sum of its proper divisors (43809299).

90988461 is a wasteful number, since it uses less digits than its factorization.

90988461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369952 (or 3369946 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 90988461 is about 9538.7871870590. The cubic root of 90988461 is about 449.7751320952.

The spelling of 90988461 in words is "ninety million, nine hundred eighty-eight thousand, four hundred sixty-one".