2451897 has 16 divisors (see below), whose sum is σ = 4151680. Its totient is φ = 1400976.

The previous prime is 2451887. The next prime is 2451907. The reversal of 2451897 is 7981542.

It is an interprime number because it is at equal distance from previous prime (2451887) and next prime (2451907).

It is not a de Polignac number, because 2451897 - 2⁴ = 2451881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451847) 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, 6298 + ... + 6675.

It is an arithmetic number, because the mean of its divisors is an integer number (259480).

2^2451897 is an apocalyptic number.

2451897 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2451897 is a deficient number, since it is larger than the sum of its proper divisors (1699783).

2451897 is a wasteful number, since it uses less digits than its factorization.

2451897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12989 (or 12983 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 2451897 is about 1565.8534414178. The cubic root of 2451897 is about 134.8447598251.

The spelling of 2451897 in words is "two million, four hundred fifty-one thousand, eight hundred ninety-seven".