1045977893 has 4 divisors (see below), whose sum is σ = 1060710048. Its totient is φ = 1031245740.

The previous prime is 1045977883. The next prime is 1045977971. The reversal of 1045977893 is 3987795401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3987795401 = 15359 ⋅259639.

It is a cyclic number.

It is not a de Polignac number, because 1045977893 - 2²⁴ = 1029200677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045977883) 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, 7365971 + ... + 7366112.

It is an arithmetic number, because the mean of its divisors is an integer number (265177512).

Almost surely, 2^1045977893 is an apocalyptic number.

It is an amenable number.

1045977893 is a deficient number, since it is larger than the sum of its proper divisors (14732155).

1045977893 is an equidigital number, since it uses as much as digits as its factorization.

1045977893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14732154.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The square root of 1045977893 is about 32341.5814857592. The cubic root of 1045977893 is about 1015.0969009706.

The spelling of 1045977893 in words is "one billion, forty-five million, nine hundred seventy-seven thousand, eight hundred ninety-three".