49407987 has 16 divisors (see below), whose sum is σ = 68776352. Its totient is φ = 31518720.

The previous prime is 49407973. The next prime is 49407997. The reversal of 49407987 is 78970494.

It is a happy number.

It is not a de Polignac number, because 49407987 - 2⁷ = 49407859 is a prime.

It is a super-2 number, since 2×49407987² = 4882298358784338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49407997) 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, 3123 + ... + 10419.

It is an arithmetic number, because the mean of its divisors is an integer number (4298522).

Almost surely, 2^49407987 is an apocalyptic number.

49407987 is a deficient number, since it is larger than the sum of its proper divisors (19368365).

49407987 is a wasteful number, since it uses less digits than its factorization.

49407987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7398.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 49407987 is about 7029.0815189468. The cubic root of 49407987 is about 366.9433768909.

The spelling of 49407987 in words is "forty-nine million, four hundred seven thousand, nine hundred eighty-seven".