1187408 has 20 divisors (see below), whose sum is σ = 2351040. Its totient is φ = 580704.

The previous prime is 1187387. The next prime is 1187411. The reversal of 1187408 is 8047811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 1541.

It is an arithmetic number, because the mean of its divisors is an integer number (117552).

2^1187408 is an apocalyptic number.

It is an amenable number.

1187408 is a deficient number, since it is larger than the sum of its proper divisors (1163632).

1187408 is a wasteful number, since it uses less digits than its factorization.

1187408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1634 (or 1628 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 1187408 is about 1089.6825225725. The cubic root of 1187408 is about 105.8928548286.

The spelling of 1187408 in words is "one million, one hundred eighty-seven thousand, four hundred eight".