331006477 has 16 divisors (see below), whose sum is σ = 350076672. Its totient is φ = 312586560.

The previous prime is 331006469. The next prime is 331006523. The reversal of 331006477 is 774600133.

It is a cyclic number.

It is not a de Polignac number, because 331006477 - 2³ = 331006469 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 (331006457) 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, 227083 + ... + 228535.

It is an arithmetic number, because the mean of its divisors is an integer number (21879792).

Almost surely, 2^331006477 is an apocalyptic number.

331006477 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

331006477 is a deficient number, since it is larger than the sum of its proper divisors (19070195).

331006477 is a wasteful number, since it uses less digits than its factorization.

331006477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668.

The product of its (nonzero) digits is 10584, while the sum is 31.

The square root of 331006477 is about 18193.5834018480. The cubic root of 331006477 is about 691.7441536130.

The spelling of 331006477 in words is "three hundred thirty-one million, six thousand, four hundred seventy-seven".