1466977493 has 4 divisors (see below), whose sum is σ = 1468178208. Its totient is φ = 1465776780.

The previous prime is 1466977483. The next prime is 1466977531. The reversal of 1466977493 is 3947796641.

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: 3947796641 = 1453 ⋅2716997.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1466977493 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 (1466977423) 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, 598523 + ... + 600968.

It is an arithmetic number, because the mean of its divisors is an integer number (367044552).

Almost surely, 2^1466977493 is an apocalyptic number.

It is an amenable number.

1466977493 is a deficient number, since it is larger than the sum of its proper divisors (1200715).

1466977493 is a wasteful number, since it uses less digits than its factorization.

1466977493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200714.

The product of its digits is 6858432, while the sum is 56.

The square root of 1466977493 is about 38301.1421892350. The cubic root of 1466977493 is about 1136.2515367108.

The spelling of 1466977493 in words is "one billion, four hundred sixty-six million, nine hundred seventy-seven thousand, four hundred ninety-three".