890691477 has 16 divisors (see below), whose sum is σ = 1284588480. Its totient is φ = 545697792.

The previous prime is 890691467. The next prime is 890691497. The reversal of 890691477 is 774196098.

It is not a de Polignac number, because 890691477 - 2¹⁹ = 890167189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890691457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41452 + ... + 59157.

It is an arithmetic number, because the mean of its divisors is an integer number (80286780).

Almost surely, 2^890691477 is an apocalyptic number.

It is an amenable number.

890691477 is a deficient number, since it is larger than the sum of its proper divisors (393897003).

890691477 is a wasteful number, since it uses less digits than its factorization.

890691477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100852.

The product of its (nonzero) digits is 762048, while the sum is 51.

The square root of 890691477 is about 29844.4547110514. The cubic root of 890691477 is about 962.1492201707.

The spelling of 890691477 in words is "eight hundred ninety million, six hundred ninety-one thousand, four hundred seventy-seven".