6987057 has 48 divisors (see below), whose sum is σ = 12312000. Its totient is φ = 3480960.

The previous prime is 6987053. The next prime is 6987077. The reversal of 6987057 is 7507896.

It is not a de Polignac number, because 6987057 - 2² = 6987053 is a prime.

6987057 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6987053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 46819 + ... + 46967.

It is an arithmetic number, because the mean of its divisors is an integer number (256500).

Almost surely, 2^6987057 is an apocalyptic number.

It is an amenable number.

6987057 is a deficient number, since it is larger than the sum of its proper divisors (5324943).

6987057 is a wasteful number, since it uses less digits than its factorization.

6987057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206 (or 199 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 6987057 is about 2643.3041822689. The cubic root of 6987057 is about 191.1751452114.

The spelling of 6987057 in words is "six million, nine hundred eighty-seven thousand, fifty-seven".