9872990477 has 8 divisors (see below), whose sum is σ = 11426246400. Its totient is φ = 8355441744.

The previous prime is 9872990471. The next prime is 9872990503. The reversal of 9872990477 is 7740992789.

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 9872990477 - 2¹⁴ = 9872974093 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 (9872990471) 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, 8926202 + ... + 8927307.

It is an arithmetic number, because the mean of its divisors is an integer number (1428280800).

Almost surely, 2^9872990477 is an apocalyptic number.

It is an amenable number.

9872990477 is a deficient number, since it is larger than the sum of its proper divisors (1553255923).

9872990477 is a wasteful number, since it uses less digits than its factorization.

9872990477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17853595.

The product of its (nonzero) digits is 16003008, while the sum is 62.

The square root of 9872990477 is about 99362.9230497976. The cubic root of 9872990477 is about 2145.2746754966.

The spelling of 9872990477 in words is "nine billion, eight hundred seventy-two million, nine hundred ninety thousand, four hundred seventy-seven".