6961890 has 32 divisors (see below), whose sum is σ = 17994816. Its totient is φ = 1713600.

The previous prime is 6961879. The next prime is 6961897. The reversal of 6961890 is 981696.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (6961897) 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, 8536 + ... + 9315.

It is an arithmetic number, because the mean of its divisors is an integer number (562338).

Almost surely, 2^6961890 is an apocalyptic number.

6961890 is an abundant number, since it is smaller than the sum of its proper divisors (11032926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6961890 is a wasteful number, since it uses less digits than its factorization.

6961890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17874.

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 6961890 is about 2638.5393686659. The cubic root of 6961890 is about 190.9453349039.

The spelling of 6961890 in words is "six million, nine hundred sixty-one thousand, eight hundred ninety".