1406457077 has 4 divisors (see below), whose sum is σ = 1406537580. Its totient is φ = 1406376576.

The previous prime is 1406457067. The next prime is 1406457103. The reversal of 1406457077 is 7707546041.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 299497636 + 1106959441 = 17306^2 + 33271^2 .

It is a cyclic number.

It is not a de Polignac number, because 1406457077 - 2¹⁶ = 1406391541 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 (1406457037) 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, 1802 + ... + 53067.

It is an arithmetic number, because the mean of its divisors is an integer number (351634395).

Almost surely, 2^1406457077 is an apocalyptic number.

It is an amenable number.

1406457077 is a deficient number, since it is larger than the sum of its proper divisors (80503).

1406457077 is an equidigital number, since it uses as much as digits as its factorization.

1406457077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80502.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 1406457077 is about 37502.7609250306. The cubic root of 1406457077 is about 1120.4061762869.

The spelling of 1406457077 in words is "one billion, four hundred six million, four hundred fifty-seven thousand, seventy-seven".