45987739 has 4 divisors (see below), whose sum is σ = 52557424. Its totient is φ = 39418056.

The previous prime is 45987719. The next prime is 45987751. The reversal of 45987739 is 93778954.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93778954 = 2 ⋅46889477.

It is a cyclic number.

It is not a de Polignac number, because 45987739 - 2¹⁵ = 45954971 is a prime.

It is a super-2 number, since 2×45987739² = 4229744276664242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45987719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3284832 + ... + 3284845.

It is an arithmetic number, because the mean of its divisors is an integer number (13139356).

Almost surely, 2^45987739 is an apocalyptic number.

45987739 is a deficient number, since it is larger than the sum of its proper divisors (6569685).

45987739 is an equidigital number, since it uses as much as digits as its factorization.

45987739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6569684.

The product of its digits is 1905120, while the sum is 52.

The square root of 45987739 is about 6781.4260299733. The cubic root of 45987739 is about 358.2729496713.

The spelling of 45987739 in words is "forty-five million, nine hundred eighty-seven thousand, seven hundred thirty-nine".