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3892987 = 74211321
BaseRepresentation
bin1110110110011011111011
321022210011201
432312123323
51444033422
6215235031
745042550
oct16663373
97283151
103892987
11221994a
121378a77
13a63c57
14734a27
1551d727
hex3b66fb

3892987 has 8 divisors (see below), whose sum is σ = 4463072. Its totient is φ = 3326400.

The previous prime is 3892979. The next prime is 3893023. The reversal of 3892987 is 7892983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3892987 - 23 = 3892979 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3892907) 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, 2287 + ... + 3607.

It is an arithmetic number, because the mean of its divisors is an integer number (557884).

Almost surely, 23892987 is an apocalyptic number.

3892987 is a deficient number, since it is larger than the sum of its proper divisors (570085).

3892987 is a wasteful number, since it uses less digits than its factorization.

3892987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749.

The product of its digits is 217728, while the sum is 46.

The square root of 3892987 is about 1973.0653815827. The cubic root of 3892987 is about 157.3116855729.

It can be divided in two parts, 38 and 92987, that added together give a square (93025 = 3052).

The spelling of 3892987 in words is "three million, eight hundred ninety-two thousand, nine hundred eighty-seven".

Divisors: 1 7 421 1321 2947 9247 556141 3892987